1. Early Life and Background
Motoko Obayashi was born in Shinjuku, Tokyo, and later moved to Kodaira, Tokyo during her childhood. She began playing volleyball in her first year of junior high school. Her mother, Hiroko Obayashi, was a high jumper who was considered a candidate for the Tokyo Olympics and later became a professional dancer. Her father was a trading company employee.
1.1. Childhood and Height Complex
As a child, Obayashi's dream was to become a singer. She would often mimic songs and dances from musicals and music programs she watched at home, envisioning a career on stage or in music, including aspiring to join the Takarazuka Revue. However, her unusual height from an early age caused her to be bullied and ostracized by other children after starting elementary school. This made her tall stature a source of deep personal complex, to the point where she sometimes withdrew and even contemplated suicide. By the sixth grade, she had reached 67 in (170 cm) in height, which intensified her struggles.
Her perspective began to shift in the fourth grade after watching a re-broadcast of the anime series Attack No. 1. This inspired her to view her height as a potential asset rather than a weakness, leading her to join the volleyball club in junior high school. For Obayashi, volleyball was not initially a glittering dream but a means of survival, a way to cope with her experiences of bullying, and a path to prove herself. She later described her motivation as partly an act of "revenge" against those who bullied her, stating that for her, volleyball was not a sparkling dream but a means of survival.
1.2. Education and Early Volleyball Career
Obayashi attended Kodaira Second Junior High School, where she first joined a volleyball club. Despite initially skipping practices occasionally, a stern remark from her coach after a poor game-"You have no right to be dejected if you don't practice"-prompted her to commit fully to volleyball. Her proximity to the practice facilities of the top industrial league team, Hitachi Belle Fille, further influenced her. She began visiting their practices regularly after school, initially sending a fan letter to the coach, Shigeo Yamada, in hopes of getting an autograph from her favorite player, Yumie Egami. Obayashi later admitted that she specifically sent the letter to the coach because she thought a popular player like Egami might not read fan mail directly, hoping to get an autograph through the coach instead.
In 1983, after graduating from junior high, she enrolled in Hachioji Jissen High School, a powerhouse in volleyball. During her high school career, her team achieved third place in the 15th (1984) Spring High School Volleyball tournament and second place in the 16th (1985) tournament. Living in a dormitory with her teammates, she learned discipline, etiquette, and a strong will to win, which she considers foundational to her life. She noted that living with teammates taught them to believe that "second place is the same as last place; we have to win." While still in high school in 1985, she was first selected for the Japanese national team and made her international debut at the 1985 World Cup.
2. Professional Volleyball Career
Motoko Obayashi's professional volleyball career spanned over a decade, marked by significant club affiliations and extensive participation in international competitions with the Japanese national team, where she served as a pivotal attacker.
2.1. Club Career
In 1986, after graduating from high school, Obayashi joined Hitachi Belle Fille (also known as Hitachi, and she simultaneously joined Hitachi, Ltd.), which was then one of the top teams in the industrial league. Her tenure with Hitachi was impactful, but also saw her face challenges. Shortly before the 1989 World Cup, she sustained severe injuries, including a meniscal tear in her knee and a ligament rupture in her right ankle, which limited her court time despite being on the roster.
In July 1994, seeking professional contracts, Obayashi and other Hitachi players submitted their resignations, which were later withdrawn after discussions. However, in November of the same year, a team internal conflict led to her dismissal from Hitachi, alongside Tomoko Yoshihara. This occurred just a day after the launch of the V.League, Japan's professional volleyball league.
Following her dismissal, in January 1995, Obayashi made a historic move by becoming the first Japanese professional volleyball player to sign with an Italian Serie A team, Ancona. Driven by a desire to test herself in the world's top league, she played for five months until the end of the season. Her time in Italy taught her the importance of presenting herself as a professional, extending beyond her on-court performance to her public demeanor, as fan evaluation was quite strict.
Upon her return to Japan in May 1995, she was initially expected to join Daiei Orange Attackers. However, issues with her agent led to a shift, and she ultimately signed a professional contract with Toyobo Orchis. She played for Toyobo Orchis until her retirement in March 1997.
2.2. National Team Career
Motoko Obayashi was a consistent member of the Japanese national volleyball team from 1985 to 1996, serving as a key attacker and representing Japan in three consecutive Summer Olympics.
She participated in the 1988 Seoul Olympics, where Japan placed fourth. This result was seen as a setback, as the team had been mandated to win a gold medal, following a bronze in the previous Los Angeles Olympics (which was considered the "worst result" at the time for Japanese women's volleyball, which had historically only won gold or silver). Despite intensive training, Japan finished fifth at the 1992 Barcelona Olympics. These outcomes spurred Obayashi's interest in the "professionalization concept" for Japanese volleyball, a movement supported by her coach, Shigeo Yamada, to elevate the sport's level. At the 1996 Atlanta Olympics, her final Olympic appearance, Japan finished ninth.
Obayashi competed in two World Championships: in 1990 and as captain in 1994. She also participated in four World Cups: 1985, 1989, 1991, and 1995.
Her international medal achievements include:
- A bronze medal with the Japanese team at the 1994 Goodwill Games held in Saint Petersburg.
- Bronze medals at the 1990 Beijing Asian Games and the 1994 Hiroshima Asian Games.
Additionally, she competed in the FIVB Volleyball World Grand Prix in 1993, 1995, and 1996. Her participation in the Asian Volleyball Championship included the 1987, 1989, 1991, 1993, and 1994 tournaments, and the FIVB Volleyball World Grand Champions Cup in 1993.
2.3. Playing Style
Obayashi's distinctive playing style leveraged her height of 72 in (182 cm) and her left-handed attack. Her signature technique was a "broad attack" that involved her running from the right end of the court to the left, behind the middle blocker and setter, to launch an attack. This unique maneuver became widely known as the "Motoko Special." Her spike height was 123 in (312 cm) and her block height was 115 in (293 cm).
2.4. Retirement
Motoko Obayashi retired as a professional volleyball player in March 1997. Her decision came after competing in the 1996 Atlanta Olympics, where Japan's ninth-place finish was a disappointment, and playing one more season in the V.League.
3. Post-Retirement Activities
After retiring from professional volleyball, Motoko Obayashi embarked on a multifaceted career, transitioning into roles as a sports commentator, entertainer, and taking on various academic and management positions. She is affiliated with Horipro, a prominent Japanese talent agency.

3.1. Sports Commentator and Advisory Roles
Following her retirement, Obayashi joined Horipro and began her career as a sports caster. She served as a volleyball commentator and as a Volleyball Advisory Staff (VAS) member, contributing to the development of younger players. Within the Japan Volleyball Association, she held key positions as a member of the public relations Committee and the technical committee.
In 1997, a turning point in her post-retirement career came when she made her first report for the F1 Italian Grand Prix broadcast on Fuji Television. She recalled being captivated by the sound, smell, and the sheer determination of the drivers, leading her to become deeply involved in motorsports. Initially, she struggled to secure interviews with mechanics and engineers, who often dismissed her due to her perceived lack of specialized knowledge. Viewers also criticized her involvement in motorsports reporting, questioning why a volleyball player was covering the sport. Feeling a loss of confidence, she realized her lack of knowledge was the root cause. This prompted her to intensely study F1 magazines and past race footage. She recounted spending weekends traveling at her own expense to Fuji Speedway and maintenance shops to learn from engineers. She also obtained a Domestic Class A Motor Sports License and an MFJ Pit Crew License to deepen her understanding, believing that deep knowledge was essential for insightful reporting, similar to her experience as a volleyball player. Through personal instruction from CERUMO staff, who manage racing teams, and her predecessor, Yuri Hayashi, she acquired extensive knowledge. Her efforts eventually earned her the respect of mechanics and engineers, allowing her to conduct in-depth interviews. This dedication led to a 15-year career as a motorsports program host for Fuji Television and SKY PerfecTV! Premium Service (including Motorsports Paradise from 2001 to 2005, and F1GP News from 2005 to 2011).
Her involvement in motorsports also extended to team management. In 2001, she formed an all-female racing team called "Obayashi Attackers," serving as its director and participating in endurance races like the Suzuka 1000km. The team was reformed as "Ladies D" in 2003 for another challenge. She has also served as a Symbol Member of the Japan Sports Masters Committee and a Committee Member for the Japan Sports Shonendan.
3.2. Entertainment and Acting Career
Alongside her sports-related activities, Obayashi diversified into general entertainment. In 2001, she made her debut as a singer under the solo project "Deka Moni" (short for "Dekai Morning Musume," meaning "Big Morning Musume"), produced by Tsunku♂. This project was created as a spin-off from the popular unit Mini-Moni (Mini Morning Musume), which featured members under 59 in (150 cm) tall. Despite being presented in a unit-like style with four women on the debut single's CD jacket, all four figures were, in fact, Obayashi herself, making it effectively a solo venture.
Her singing debut intensified her childhood dream of pursuing singing and acting. In 2006, she made her stage debut as an actress, playing Hōjō Masako in Air studio's production of GENJI~Saigo no Genji~ at Tokyo Metropolitan Theatre. This marked the beginning of her serious pursuit of an acting career, primarily on stage.
Since 2009, she has made MOTHER~Tokkō no Haha Torihama Tome Monogatari~, a play depicting the life of Tome Torihama, known as the "Mother of Kamikaze Pilots," a life's work, performing the lead role. She is known for actively seeking out roles and building relationships within the theater community.
Obayashi has appeared in three productions directed by the acclaimed director Yukio Ninagawa, starting with The Tragedy of Faust in 2010. A huge fan of Ninagawa's work, she directly approached him backstage to express her desire to work with him. She continued to pursue this goal by attending his rehearsals and sending him letters and DVDs. When she finally participated in a Ninagawa production, he famously told her, "You are tall, so you can't be an ordinary actress. You should aim to be Japan's most grotesque actress." Obayashi later stated that this comment became her most cherished treasure and a source of strength in her acting career.
In 2015, she made her musical debut in From Nobody to Somebody, an adaptation of Marco - From the Apennines to the Andes. Her commitment to acting is evidenced by her typical schedule of appearing in about five stage plays per year as of 2023. In December 2015, she underwent surgery for a vocal cord nodule, successfully recovering. In 2022, she debuted as an enka singer under her own name, releasing the double A-side single "Hidamari Diary" and "Aisuru Hito to Arukitai" from Michinoku Records. The latter song was originally a theme song for Nanyo, Yamagata, a city where she had filmed a movie, and her appearance in that film led to her enka debut.
Her filmography includes:
- Inochi Aru Kagiri: Kida Toshiyuki Monogatari (2017) as Michinoku Records Chairman's wife
- Tokyo Loss Episode 7 "Egao no Mukougawa" (2018) as Noriko Tanabe
- Kokoro no Uta: Tobira no Mukou ni (2022)
- Nukumori no Uchiwa (2023), recommended by the Ministry of Health, Labour and Welfare
- Kaze ga Toorinukeru Michi (2024), supported by Okinawa Prefecture
- Himekuri no Aji (scheduled for October 4, 2024)
Her television drama appearances include:
- Match Point! (2000, NHK) as Tomoko Nishikawa
- Attack No. 1 (2005, TV Asahi) as the mother of the Yagisawa sisters (also served as volleyball supervisor)
- Three Old Men 2: Our Allies Return!! Episode 3 (2015, TV Tokyo) as a customer at a host club
- Sneaking Detective Idol: Criminal Dance Episode 8 (2016, TV Tokyo) as Kaho
- Kasouken no Onna Episode 9 (2022, TV Asahi) as Kimiko Hasegawa, Kyoto Prefectural Police identification officer.
She has also appeared in travel programs like Gurutto Shoku no Tabi Kitchen ga Yuku (2013-2014, NHK BS Premium) as a traveler, and variety shows such as Rekishi Manzai Histories Japan (2017) as a navigator and portraying Yae Yamamoto.
3.3. Academic and Management Roles
In April 2008, Motoko Obayashi was appointed as a guest professor at Kobe Shinwa Women's University in the newly established Junior Sports Education Department within the Faculty of Developmental Education. She also served as a part-time lecturer at the University of Aizu, teaching volleyball in their physical education practical skills classes from October 2020 to March 2021.
Beyond academia, she took on a significant management role in professional volleyball. On May 9, 2023, she was appointed General Manager of Breath Hamamatsu, a team in the V.League Division 2 Women. She held this position until her resignation on April 30, 2024. As of October 2024, she has also been appointed as a PR Ambassador for the SV League.
4. Public and Ambassadorial Roles
Motoko Obayashi has held numerous public and ambassadorial positions, reflecting her strong social engagement and commitment to promoting sports and her home regions.
- Current Roles (as of October 2024):**
- Public Relations Committee member and Technical Committee member for the Japan Volleyball Association (JVA).
- Symbol Member of the Japan Sports Masters Committee.
- Fukushima Prefecture "Shakunage Ambassador."
- Japan Tourism Agency "Sports Tourism Meister."
- Ministry of the Environment "Challenge 25" campaign supporter.
- JOC Environment Ambassador.
- Kodaira City Tourism and Town Development Ambassador (since August 2016).
- Aizuwakamatsu City Tourism Ambassador (since February 2018).
- PR Ambassador for the SV League (since October 2024).
- Past Roles:**
- JOC Olympic Day Run Ambassador (2009, 2010).
- JOC Olympic Movement Ambassador (2014-2015).
- General Manager of Breath Hamamatsu (2023-2024).
- Director of the General Incorporated Association SV League (until September 2024).
In 2021, Obayashi participated in the torch relay for the 2020 Summer Olympics in Tokyo.
5. Personal Life and Anecdotes
Motoko Obayashi's personal life is characterized by diverse interests, a continuous pursuit of new skills, and notable experiences that have shaped her public persona and career.
5.1. Interests and Qualifications
Her hobbies include stage viewing, with a particular fondness for the Takarazuka Revue, and attending car and motorcycle races. She also practices tap dance.
Obayashi is highly qualified, holding a Domestic Class A Motor Sports License and an MFJ Pit Crew License, which she acquired during her career as an F1 reporter. Additionally, her work as a sports caster led her to obtain a Class 4 Small Vessel Operator's License, an Ikebana Oku-den License (Ikebana is a Japanese art of flower arrangement) from the Ikenobō School, and an 8th grade certification in kendama.
She is a passionate comedy enthusiast, frequently attending live shows at theaters and making guest appearances on Kansai-area variety programs. Her deep knowledge of comedy even led her to serve as a judge for comedy competitions like the R-1 Grand Prix. She is reportedly well-versed in comedians, even asking major TV networks for recordings of local shows featuring comedians.
Obayashi is also an avid Japanese history buff, particularly interested in the Shinsengumi and the Byakkotai. She particularly admires Toshizo Hijikata of the Shinsengumi and makes several trips a year to historical sites associated with them, such as Aizuwakamatsu in Fukushima Prefecture. Her connection to Aizuwakamatsu is so strong that she maintains a multi-location living arrangement between Tokyo and Aizuwakamatsu since around 2018.
Her dream role is to play Joanne in the musical Rent, for which she has been taking voice lessons and vocal training under Tetsumi Onodera.
5.2. Notable Anecdotes
While her childhood struggles with height and bullying pushed her into volleyball, Obayashi admitted that her initial motivation was not a love for the sport itself but a desire to "live" and exact "revenge" on her bullies. Despite becoming a formidable athlete, she confessed that she was not naturally athletic before joining the volleyball club in junior high.
During her time at Hitachi, she developed a deep respect for coach Shigeo Yamada. She initially wrote him a fan letter primarily to obtain an autograph from her favorite player, Yumie Egami. Yamada invited her to observe Hitachi's practices, which she frequently did after her own junior high practices.
Her high school dormitory life at Hachioji Jissen imposed strict rules, including a ban on carbonated drinks and sweets. The only exception was a monthly shopping day, where Fanta Grape became her cherished indulgence. She continued this tradition throughout her career, treating herself to Fanta Grape only after significant achievements, such as qualifying for the Olympics.
Obayashi was a fan of Japanese pop idol Seiko Matsuda. At the 1988 Seoul Olympics, she sported the popular "Seiko-chan cut" hairstyle.
In 2015, Obayashi publicly stated that her height had increased from 72 in (182 cm) to 72 in (184 cm) over two years, and in 2022, it was reported that she had grown another 0.2 in (0.5 cm), reaching 73 in (185 cm).
During her playing career, Obayashi revealed that she wore custom-modified, high-cut bloomers, either without underwear or over a T-back thong. She candidly stated that she wore smaller bloomers "on purpose" to attract viewers and that she found it comfortable, famously quipping on a TV show in 2013 that she was "fine" with short skirts because she had "worn bloomers for 29 years." She also expressed her strong "attachment to bloomers" when the national team's uniform changed to spats.
Her mother often carried her mother-child handbook when they used public transportation during Obayashi's elementary school years, as her height was so exceptional. Her sister, in contrast, is around 64 in (163 cm) tall.
Obayashi was the only woman to achieve a "CLEAR" on the "Wall Crash" attraction in the popular Japanese variety show Sekiguchi Hiroshi no Tokyo Friend Park II.
6. Works
Motoko Obayashi's career has spanned various media, resulting in a wide range of creative works, including published books, musical releases, and appearances in film, television, and stage productions.
6.1. Books
- Obayashi Motoko no Volleyball Kyoshitsu: Hakkyu o Ou Anata ni Tsutaetai (Motoko Obayashi's Volleyball Classroom: What I Want to Tell You Who Pursue the White Ball) (Junposha)
- My Dream (Alice-kan)
- Volley ni Koi Shite (In Love with Volleyball) (Kodansha)
- DVD de Wakaru! Volleyball: Kihon, Renshu, Jissen Technique (Understand with DVD! Volleyball: Basics, Practice, Practical Techniques) (Seito Publishing)
- Chance no Hōsoku (The Law of Chance) (Linda Publishers)
6.2. Discography
- Singles:**
- Ōkina Watashi no Chiisana Koi (My Big Small Love) (August 7, 2001, Up-Front Works) - Released under the name Deka Moni. Limited to 5,000 copies.
- Hidamari Diary (Sunny Spot Diary) (August 30, 2022, Michinoku Records)
- Aizu no Kaze (Wind of Aizu) (February 9, 2024, Michinoku Records)
- Participating Works:**
- Chikyuu e (To the Earth) by THE EARTH BEATS (September 24, 2008, Z-9 RECORDS) - Participated as a chorus member.
6.3. Filmography and TV Appearances
- Films:**
- Inochi Aru Kagiri: Kida Toshiyuki Monogatari (2017) - Role: Michinoku Records Chairman's wife
- Tokyo Loss Episode 7 "Egao no Mukougawa" (2018, directed and written by Issei Tanaka) - Role: Noriko Tanabe
- Kokoro no Uta: Tobira no Mukou ni (2022, F&T PRO)
- Nukumori no Uchiwa (2023), recommended by the Ministry of Health, Labour and Welfare
- Kaze ga Toorinukeru Michi (2024), supported by Okinawa Prefecture
- Himekuri no Aji (scheduled for October 4, 2024, Canter)
- Television Dramas:**
- Match Point! (2000, NHK) - Role: Tomoko Nishikawa
- Attack No. 1 (2005, TV Asahi) - Role: Mother of the Yagisawa sisters (also served as volleyball supervisor)
- Three Old Men 2: Our Allies Return!! Episode 3 (May 8, 2015, TV Tokyo) - Role: Host club customer
- Sneaking Detective Idol: Criminal Dance Episode 8 (November 26, 2016, TV Tokyo) - Role: Kaho
- Kasouken no Onna Episode 9, 2-hour special (January 13, 2022, TV Asahi) - Role: Kimiko Hasegawa, Kyoto Prefectural Police identification officer
- Travel Programs:**
- Gurutto Shoku no Tabi Kitchen ga Yuku (2013-2014, NHK BS Premium) - Role: Traveler
- Variety Shows:**
- Rekishi Manzai Histories Japan (July-September 2017, Tōmeihan Net 6) - Role: Navigator, Yae Yamamoto
- JOY no ASOBU-TV JOYnt! (September 6) - Guest appearance
- Shimoneta GP (September 17 - December 3, 2018, AbemaTV) - Role: Judge
- Radio:**
- Imonesu no Michinoku ha Imo Batake (February 2 - July 2024, FM Taihaku) - Corner regular
6.4. Stage Performances
Motoko Obayashi has an extensive career in theatrical and musical stage performances, notably in productions directed by Yukio Ninagawa.
- GENJI~Saigo no Genji~ (October 12-15, 2006, Tokyo Metropolitan Theatre Small Hall 1) - Role: Hōjō Masako
- A Midsummer Night's Dream (May 10-13, 2007, Tokyo Metropolitan Theatre Small Hall 1) - Role: Titania
- SOHJI Soji! (January 19-27, 2008, Honda Gekijo) - Role: Okōtsu
- Kiss Me You~Ganbatta Shinpuu-tachi e~ (May 8-13, 2008, Zenrosai Hall Space Zero) - Role: Hana Oyama
- Kamakura Tsurugaoka Hachimangu Hosho Live 2008 Kashin Sanetomo Kou (October 18, 2008, Tsurugaoka Hachimangu Maidono) - Role: Recitation
- Kukan Jelly no Natsu no Yo no Yume (December 13-21, 2008, Tokyo Metropolitan Theatre Small Hall 2) - Role: Titania
- Kujo no Tegami (February 14, 2009, Hakuhinkan Theater) - Role: Woman living below the apartment
- IMAGINE 9.11 (September 10-13, 2009, Theater X) - Role: Cathy
- MOTHER~Tokkō no Haha Torihama Tome Monogatari~ - Lead Role: Tome Torihama (multiple runs from 2009 to 2019 across various theaters in Japan)
- Masakado-MASAKADO- (March 8-16, 2010, Imagine Studio) - Role: Guide/Narration
- The Tragedy of Faust (July 4-25, 2010, Bunkamura Theatre Cocoon, directed by Yukio Ninagawa) - Roles: Shameless woman, Queen of Alexander the Great, among others.
- Taiko Dondon (May 2-26, 2011, Bunkamura Theatre Cocoon, directed by Yukio Ninagawa) - Roles: Satono-ura, Geisha, among others.
- Gekidan BOOGIE★WOOGIE 29th ACT "Nonstop Liars" (October 11-14, 2012, Tokyo Metropolitan Theatre Theatre West) - Role: Yang Xiaoli
- Tokyo Samurai Guns Produce Performance Vol. 4 x Theater Brats Tie-up Performance Playfulness Days 2~Bokutachi no Answer~ (November 16-19, 2012, Shinjuku THEATER BRATS) - Guest appearance (surprise act)
- Shin Gansaku Suikoden -Heroes- (May 15-19, 2013, Owl Spot) - Role: Lu Sanniang / Miho (Tomi's mother)
- Blind Dog -From Shibusawa Tatsuhiko's "Dog Wolf City"- (Tokyo: July 6-28, 2013, Bunkamura Theatre Cocoon; Osaka: August 3-11, 2013, Theatre Brava!, directed by Yukio Ninagawa) - Role: Sacarino
- FRANK AGE company 4th Performance 'Aoi Yane no Yakata' (February 26 - March 2, 2014, Akasaka RED/THEATER)
- Kitamura-jirushi Produce Performance #5 'Hanare Ushi' (June 25-29, 2014, Zenrosai Hall Space Zero) - Role: O-Masa
- THE REDFACE PRODUCE VOL. 52 Donsyo DONSYOU 7 Yokohama Kaiko Special Edition: Eikokukoshi Fujin (March 12, 2015, Yokohama Port Opening Memorial Hall) - Role: Fanny Parks
- Imagine Musical Haha o Tazunete Sanzenri~Marco~ (July-August 2015, various locations across Japan) - Role: Mother
- Sōsai no Chichiru (April 14-17, 2016, Aichi Arts Center, written/directed by Glim Enomoto)
- Tokyo Boys Collection~Ai no Uta~ (November 5-13, 2016, Shinjuku Mura LIVE)
- Tokyo no Pein (December 7-11, 2016, Shinjuku Mura LIVE, written/directed by Glim Enomoto) - Role: Sanae
- Sōsai no Chichiru [Re-run] (April 26 - May 3, 2017, Shinjuku Mura LIVE, written/directed by Glim Enomoto)
- Gozen 5-ji 47-fun no Tokeidai (May 16, 2017, Kobe Portopia Hall, written/directed by Taku Yamamoto) - Guest appearance
- My Host-chan REBORN~Zekkyo! Osaka Minami-hen~ (Tokyo: January 19-28, 2018, Sunshine Theatre; Aichi: February 1, 2018, Tokai Arts Theatre; Osaka: February 1, 2018, Sankei Hall Breeze) - Co-starred with LiLiCo
- ReBirth (August 10-14, 2018, Shimo-Kitazawa "Geki" Little Theatre, music/performance by Kazuumi Tateishi, written/directed by Takehiko Hata)
- BURRRN!!! (August 15-18, 2018, Tsukishima Community Education Center)
- Nagareru Kumo yo (August 14-18, 2019, Rikko-kai Hall, written by Fumiko Kusakabe, directed by Torao Tanaka)
- Adachi Kentaro to Yakusha ga Cont suru LIVE (August 27, 2019, Lumine the Yoshimoto)
- [Recitation] Dekakeru Toki wa Itsumo (August 31 - September 3, 2019, Shinjuku Gankagarou Space Basement, written by Glim Enomoto)
- Musical Princess Sarah (November 20-24, 2019, Takinogawa Kaikan Large Hall Theatre) - Role: Maria Minchin
- 2.5 Dimensional Dance Live S.Q.S 5th Act "Takamura Shiki Shōshitsu Jiken" (February 20 - March 1, 2020, Hulic Hall Tokyo, written by Fujiwara (Movic)) - Role: Hana Itsuki
- [Recitation] Glim no Hosoku Enomoto Glim Recitation Play Trilogy 'Kioku Kanransha' (June 23 - July 5, 2020, Akasaka RED THEATER, written by Glim Enomoto, directed by Kōsuke Nakajima) - Role: Chika Koyama
- [Recitation] Natsu no Owari no Reading Literature~Edogawa Ranpo Hen~ "Yaneura no Sanposha", "D-Zaka no Satsujin Jiken", "Shinri Shiken" (September 3-7, 2020, R's Art Court)
- Oka no Baccaloo!! (October 28 - November 3, 2020, Theatre Green BIG TREE THEATER, written/directed by Shintaro Sugano)
- [Recitation] Aki no Owari no Reading Literature~Akutagawa Ryūnosuke Hen~ "Rashomon", "Yabu no Naka" (December 8-13, 2020, Theatre Green BIG TREE THEATER)
- Engeki Kikaku Unit Gekidan Yamamoto-ya CUWT project vol.1 'Kaze o Kire 2020' (May 26 - June 1, 2021, Lazona Kawasaki Plaza Sol)
- [Recitation] Asa no Rōdoku-kai "Kaerenai Futari" A Team (June 22 - July 3, 2021, πTOKYO, written/directed by Yosuke Nakajima)
- Kamiki Yu Solo Entertainment "MOMOTARO" Regular Performance VOL. 21 ~Sports and Momotaro~ Part 2 (September 25, 2021, Otsuka Le Summers Studio) - Guest appearance
- Tsuchi no Baccaloo!! (October 6-12, 2021, Theatre Green BIG TREE THEATER, written/directed by Shintaro Sugano)
- ATTENDANTX (October 22, 2021, Hakuhinkan Hall) - Guest appearance
- Sora to Omchan no Monogatari~Miageta Sora ni Kimi ga Ita~ (December 1-5, 2021, Nippori d-soko, written/directed by Kwang-sung Jung)
- Twilight no Namida (January 19-23, 2022, Sun Mall Studio, written/directed by Uchikuri Uchikura)
- Sekai wa Boku no CUBE de Tsukurareru (March 31 - April 10, 2022, Owl Spot, written/directed by Hajime Matsuta) - Role: Miss Brain
- Shizuku no Baccaloo!! (May 11-17, 2022, Theatre Green BIG TREE THEATER, written/directed by Shintaro Sugano)
- Stage 'Confession of Murder' (June 17-26, 2022, Sunshine Theatre) - Role: Mi-ja Jang
- Nagareru Kumo yo (August 17-21, 2022, Rikko-kai Hall, written by Fumiko Kusakabe, directed by Torao Tanaka)
- Kusa no Baccaloo!! (October 5-11, 2022, Theatre Green BIG TREE THEATER, written/directed by Shintaro Sugano)
- Tōki Hi no Rakkyū~Ano Toki kara Tsuzuiteiru kara Ima Nanda~ (February 15-19, 2023, Theater Alpha Tokyo, directed by Hiroshi Takeda)
- Sōsai no Chichiru [Re-re-run] (March 16-26, 2023, πTOKYO, written/directed by Glim Enomoto)
- Hinata no Baccaloo!! (April 12-18, 2023, Theatre Green BIG TREE THEATER, written/directed by Shintaro Sugano)
- Nami no Baccaloo!! (October 25-31, 2023, Theatre Green BOX in BOX THEATER, written/directed by Shintaro Sugano)
- Nagisa no Baccaloo!! (April 10-16, 2024, Theatre Green BOX in BOX THEATER, written/directed by Shintaro Sugano)
- Change the World Omedeto. Kimi ga, Sekai o Kaerun da (June 8-16, 2024, Sunshine Theatre, original story/script by Takehiko Hata, directed by Akihiro Hashimoto)
- Kaze o Kire 2024 Engeki Kikaku Unit Gekidan Yamamoto-ya CUWT project vol. 2.0 (July 25-28, 2024, Tokyo Metropolitan Theatre Theatre West, written/directed by Taku Yamamoto)
- Sato no Baccaloo!! (October 30 - November 5, 2024, Theatre Green BOX in BOX THEATER, written/directed by Shintaro Sugano)
- ~Joshi Ōkōji no Meitantei Shinsho~ Butai "Shi wa, Domannaka ni Korogeochite" (March 15-23, 2025, Hakuhinkan Theatre, written/directed by Takehiko Hata)
6.5. Other Media Appearances
- Commercials (CMs):**
- Meiji Seika Kajū Gumi (Fruit Gummy) (1991) - Appeared alongside five other players in a white long-sleeve uniform, red bloomers, white knee pads, white high socks, and white sneakers, depicting them serving in a line.
- Takarakuji Tokyo 2020 Games Special Lottery (2016)
- Ventuno Kaicho Herb Lactic Acid Bacteria (since 2022)
- Radio:**
- Imonesu no Michinoku ha Imo Batake (February 2 - July 2024, FM Taihaku) - Corner regular
7. Awards and Honors
Motoko Obayashi has received numerous awards throughout her distinguished professional volleyball career and her subsequent activities.
- Japan League / V.League Awards:**
- 1987: 20th Japan League Best 6
- 1988: 21st Japan League Fighting Spirit Award, Hard Hitter Award, Best 6
- 1989: 22nd Japan League Most Valuable Player (MVP), Spiking Award, Best 6
- 1990: 23rd Japan League Serving Award
- 1991: 24th Japan League Spiking Award, Best 6
- 1992: 25th Japan League Best 6
- 1993: 26th Japan League MVP, Best 6
- 1994: 27th Japan League MVP, Spiking Award, Best 6
- 1996: 2nd V.League Best 6
- 1997: 3rd V.League Fighting Spirit Award, Special Award
- 2007: 2006-07 V.Premier League V.League Honor Award
- International Competition Awards:**
- 1989: Asian Club Championship Spiking Award, Blocking Award
- 1991: Asian Club Championship Spiking Award, Best 6 Award; Asian Championship Best Spiker Award
- 1992: Asian Club Championship Most Valuable Player (MVP), Best 6 Award
- 1996: World Super Challenge 96 Best Serve Award
8. Affiliated Teams
Motoko Obayashi was affiliated with the following teams during her volleyball playing career:
- Kodaira Second Junior High School
- Hachioji Jissen High School
- Hitachi Belle Fille (1986-1994)
- Ancona (Italy) (1995)
- Toyobo Orchis (1995-1997)