Oniichan wa Oshimai!

Onimai: I'm Now Your Sister! / お兄ちゃんはおしまい！ / Onimai / Onii-chan is Done For

Genres: CGDCT, Comedy, Magical Sex Shift, School, Shounen
Themes: CGDCT, Magical Sex Shift, School
Demographics: Shounen
Studios: Studio Bind
Producers: AT-X, Bit grooove promotion, BS11, Egg Firm, Hakuhodo DY Music & Pictures, Ichijinsha, Movic, Pia, Pony Canyon, TOHO animation, Toho Music, Tokyo MX
Rating: 7.65 / 10
Rank: #1472
Popularity: #1492
Users Listed: 175,457
Users Scored: 83,550
NSFW: No
Last Updated: 04/10/2023
Aired: January 5, 2023 – March 23, 2023 (Winter)
Type: tv
Source: manga
Age Rating: PG 13
Episodes: 12
Broadcast: Thursday at 23:30 (JST)

Synopsis:

Mahiro Oyama exists within the confines of his apartment, isolated and deeply immersed in virtual worlds. His sister, Mihari, concerned by his declining state, initiates an unconventional intervention: a biological alteration intended to reawaken him to reality. The process unexpectedly transforms Mahiro into a young woman, forcing him to navigate a drastically altered existence while desperately awaiting the reversal of the procedure.

The series explores themes of familial responsibility and identity through a lens of body modification and social adjustment. Mahiro grapples with the implications of his new form as he attempts to reconcile his past life with this unforeseen change. The narrative focuses on the everyday challenges of adapting to a new identity, highlighting interpersonal dynamics and personal growth amidst unexpected circumstances. It offers a contemplative look at self-perception and the complexities of familial bonds.

Trailer:

Streaming Platforms:

Episodes:

Episode 1: Mahiro's Confusing New Body (Aired: 01/05/2023)
Episode 2: Mahiro's Time of the Month (Aired: 01/12/2023)
Episode 3: Mahiro's Close Encounter (Aired: 01/19/2023)
Episode 4: Mahiro's New Friend (Aired: 01/26/2023)
Episode 5: Mahiro Discovers Adventure and Social Gatherings (Aired: 02/02/2023)
... and 7 more episodes

Characters:

Oyama, Mihari (Main) - Voice Actors: Ishihara, Kaori, Molina, Daniela
Oyama, Mahiro (Main) - Voice Actors: Kouno, Marika, Wurmer, Lara
Fujimi, Nemu (Supporting) - Voice Actors: Sakurai, Mia, Giraud, Johanna
Fushimi, Nodoka (Supporting) - Voice Actors: Tsukishiro, Rina
Haijima, Takeshi (Supporting) - Voice Actors: Uchimura, Fumiko, Liu, Jay
Hozuki, Momiji (Supporting) - Voice Actors: Tsuda, Minami, Schwarz, Sabrina
Hozuki, Kaede (Supporting) - Voice Actors: Kanemoto, Hisako, Markiefka, Angelina
Kiba, Tomoya (Supporting) - Voice Actors: Saitou, Yoshie
Kitahara, Yuriko (Supporting) - Voice Actors: Nagae, Rika, Hinrichs, Miriam
Kodaira, Makoto (Supporting) - Voice Actors: Tanaka, Saya
Leonardo (Supporting) - Voice Actors: Uchida, Yuuya, Mondschein, Nicolai
Minakata, Rin (Supporting) - Voice Actors: Yamamoto, Yuuki
Murosaki, Miyo (Supporting) - Voice Actors: Hioka, Natsumi, Olbert, Melanie
Nagase, Miyako (Supporting) - Voice Actors: Oda, Karin
Nanami, Raika (Supporting) - Voice Actors: Kuon, Erisa
Nishinomiya, Mari (Supporting) - Voice Actors: Mizuki, Rin
Ouka, Asahi (Supporting) - Voice Actors: Yuuki, Kana, Strasburger, Patricia
Sakurada, Yuuta (Supporting) - Voice Actors: Aoshima, Rena
Senkawa, Minato (Supporting) - Voice Actors: Abe, Rika, Lechenmayr, Laurin
Shiina, Minori (Supporting) - Voice Actors: Watada, Misaki, Schmidt, Lara
Takada, Satsuki (Supporting) - Voice Actors: Takatsuki, Miyuu, Leopold, Lucy
Yasaka, Mai (Supporting) - Voice Actors: Toujou, Sayako, Baron, Tanja

Staff:

Hatakeyama, Takurou (Producer)
Hishiyama, Mitsuteru (Producer)
Ootomo, Toshiya (Producer)
Fukukura, Ryouma (Assistant Producer)
Higashi, Mao (Assistant Producer)
Nakagawa, Hazuki (Assistant Producer)
Tomihara, Daiki (Assistant Producer)
Fujii, Shingo (Director, Episode Director, Storyboard)
Yoshida, Kouhei (Sound Director)
Akiyama, Yasuhiko (Episode Director, Storyboard, 2nd Key Animation, Assistant Animation Director)
Arai, Nobuyoshi (Episode Director, Storyboard)
Irei, Eri (Episode Director, Storyboard)
Kakita, Hayato (Episode Director, Storyboard)
Nagata, Shinji (Episode Director, Storyboard)
Sakaguchi, Sousei (Episode Director, Storyboard, 2nd Key Animation, Key Animation)
Suzuki, Norimitsu (Episode Director, Storyboard, Key Animation)
Tanaka, Hironori (Episode Director, Storyboard, Key Animation)
Uwano, Ayumu (Episode Director, Storyboard)
Watanabe, Akio (Episode Director, Storyboard)
Yukihiro, Komao (Episode Director)
Hirami, Miharu (Script)
Yokote, Michiko (Script, Series Composition)
Kurosawa, Mamoru (Storyboard)
Mochizuki, Tomomi (Storyboard)
Enako (Theme Song Performance)
Ishihara, Kaori (Theme Song Performance)
Kanemoto, Hisako (Theme Song Performance)
Kouno, Marika (Theme Song Performance)
Ogura, Asuka (Theme Song Lyrics, Theme Song Composition, Theme Song Arrangement)
Pmaru-sama. (Theme Song Performance)
Tsuda, Minami (Theme Song Performance)
Yashikin (Theme Song Arrangement, Theme Song Lyrics, Theme Song Composition)
Abe, Genichirou (Key Animation)
Achiwa, Daisuke (Music)
Aine, Kou (2nd Key Animation)
Aoki, Shunsuke (Animation Director, 2nd Key Animation, Key Animation, Assistant Animation Director)
Beast (2nd Key Animation)
Cai, Hongkeng (2nd Key Animation)
Chen, Zitu (2nd Key Animation)
Chen, Sheng Meng (Key Animation)
Choi, So-jeong (2nd Key Animation)
Doi, Makiko (Color Design)
Dong, Hoon (2nd Key Animation)
EVAKOI (Key Animation)
Eemii (Key Animation)
Fan, Yanxin (Key Animation)
Fasto (Key Animation)
Fujimoto, Kouki (Key Animation)
Fukuzawa, Yuuya (Publicity)
Fushihara, Akane (Director of Photography)
... and 110 more staff

News:

Winter 2023 Simulcast List [Update 1/26] (12/30/2022)
Winter 2023 Preview (12/17/2022)
'Oniichan wa Oshimai!' Reveals Additional Cast, Staff, Second Promo (12/04/2022)
'Oniichan wa Oshimai!' Announces Additional Cast, Winter 2023 Premiere (08/11/2022)
Manga 'Oniichan wa Oshimai!' Gets TV Anime (04/21/2022)

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Related Anime/Manga:

Oniichan wa Oshimai! (manga - Adaptation)