Shiraishi Sei's Profile
- Full Name: Shiraishi Sei
- Native Name: 白石 聖
- Nicknames: Sei-chan,
- Birthday: Aug 10, 1998 (27 years old)
- Blood Type: A
- Height/Weight: 159 cm (5'3") / N/A
- Gender: Female
- Zodiac Sign: Leo
- Debut: 2016
- Birthplace: Kanagawa Prefecture, Japan
- Ethnicity: Japanese
-
Nationality:
Japanese
- Profession: Actress
- Language skills: Japanese (Native)
- Current Agency: FLaMme
- Active Years: 2016 – present (9 years)
Shiraishi Sei (白石 聖) is a Japanese actress, born on August 10, 1998, in Kanagawa Prefecture, Japan. She has appeared in films, television dramas, and commercials. She was originally affiliated with Geiei Production and is currently represented by FLaMme.
Early Life
Shiraishi was born and raised in Kanagawa. During her second year of high school, she was scouted by a talent manager while walking along Takeshita Street in Harajuku—an encounter that marked the beginning of her career in the entertainment industry.
Before pursuing acting, she had been actively involved in music throughout her school years: in junior high school she played drums in the brass band, and in high school she joined the light music club and performed as a guitarist in a short-term band.
She also has notable personal interests and skills. She is proficient in calligraphy, enjoys anime and manga—particularly Gintama and Uta no Prince-sama—and has expressed interest in becoming a voice actress, although her main career focus remains acting.
Career
Shiraishi Sei began her acting career in 2016 with an appearance in TV Asahi’s drama series AKB Love Night: Koi Kōjō, marking her debut on the small screen.
In 2018, she was selected from around 700 applicants to play the heroine Aizuki Iori in the live-action adaptation of the manga I”s, broadcast on BS Sky PerfecTV!. Landing the central role in such a large-scale casting project drew significant media attention to her name.
In 2019, Shiraishi starred in her first nationally broadcast television drama, Fukuoka Renai Hakusho 14: Tenjin Love Song (KBC). That same year, information services company Recruit announced her as the 12th face of its long-running “Zexy CM Girl” campaign, a role widely regarded as a launching pad for young actors in Japan.
In 2020, she led the series Kyōfu Shinbun, aired within the “Otona no Doyō Dora” programming block on Tokai TV and Fuji TV. This marked her first time headlining a serialized drama in a prime broadcast slot, solidifying her progress as a leading actress.
On the big screen, Shiraishi appeared in PRINCE OF LEGEND (2019) and played the heroine in the high school romance film Mune ga Naru no wa Kimi no Sei (2021). These projects expanded her career from television into cinema.
From 2022 onward, Shiraishi appeared in a steady stream of television productions, including NHK’s youth drama Shimobee. The frequency of her roles during this period underscored her consistent presence on the small screen.
In 2023, she joined two mainstream TV dramas: Fuji TV’s Stand UP Start and TBS’s Fermat no Ryōri. She also appeared in Netflix’s global live-action adaptation of Yu Yu Hakusho, which introduced her to an international audience.
Entering 2024, Shiraishi maintained a packed schedule with three consecutive drama projects. In January, she portrayed Iwatsuki Mio in the suspense-action drama Shin Kūkō Senkyo (Airport Occupation). In July, she played paralegal Kagami Akari alongside Kento Nakajima in the legal series Shosen Tanin Koto Desu kara. In October, she returned as Suzaku in the crime-investigation drama Sennyū Kyōdai: Tokushu Sagi Tokumei Sōsakan, focusing on special fraud cases. These back-to-back roles throughout the year highlighted her versatility across multiple genres.
In 2025, Shiraishi takes on the role of Esaka Reina in Amazon Prime Video’s original series Watashi no Otto to Kekkon Shite, premiering on June 27. The announcement was made through her agency FLaMme and Amazon’s official media channels.
Alongside her acting work, Shiraishi has been highly active in advertising. In 2019, she became the promotional face of Recruit’s “Zexy CM Girl” campaign. In 2025, food company Morinaga announced her appearance in the in Jelly commercials alongside athletes, timed with the World Athletics Championships held in Tokyo.
Fun Facts
- She was scouted on Takeshita Street in Harajuku during a summer outing, which led to her entry into show business.
- Popular nickname: “Sei-chama.”
- Played drums in her school brass band during junior high.
- Switched to guitar and joined a light music club in high school.
- Loves anime, with favorites including Gin Tama and Uta no Prince-Sama.
- A fan of Japanese indie and rock artists such as CreepHyp, Ringo Sheena, and Seiko Oomori.
- Skilled in calligraphy, a practice she has trained in since childhood.
- Has expressed that she originally aspired to become a voice actress rather than a TV drama actress.
- Admits she is not very confident speaking in front of large groups.
- Owns a pet cat named Mō-chan, who has been with her since she was 12.
- Hosted her own radio program on Culture Broadcasting.
- Released her first personal photobook in 2020.
- On Instagram, she prefers posting natural, unretouched photos.
- In interviews, she has mentioned rewarding herself with good food or a spa visit after long filming schedules.
- Enjoys trying Pilates and pottery in her free time.
- Friends often tease her for sleeping a lot after intensive shoots.
- Frequently brings snacks to set to share with the staff.
- At 158 cm tall, she is often cast as a high school student thanks to her youthful appearance.
- Deeply fond of animals—especially cats—and has said that if she weren’t an actress, she would want to run a cat café.
- When asked about her future, she usually answers playfully and with a smile, admitting she’s not used to setting long-term goals.
Photo Gallery
