When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.
Yes! The serie ONIMAI: I'm Now Your Sister! is now on Netflix in the countries listed below.
| Directing | Shingo Fujii | Series Director |
| Writing | Michiko Yokote | Series Composition |
| Visual Effects | Ryo Imamura | Character Designer |
| Sound | Daisuke Achiwa | Original Music Composer |
| Sound | Alisa Okehazama | Original Music Composer |
| Art | Masayo Kobayashi | Art Direction |
| Visual Effects | Makiko Doi | Color Designer |
| Camera | Akane Fushihara | Director of Photography |
| Editing | Yuji Oka | Editor |
| Sound | Kohei Yoshida | Sound Director |
| Sound | Takuya Hasegawa | Sound Effects |
| Sound | Marika Kouno | Theme Song Performance |
| Sound | Kaori Ishihara | Theme Song Performance |
| Sound | Hisako Kanemoto | Theme Song Performance |
| Sound | Minami Tsuda | Theme Song Performance |
| Sound | Enako | Theme Song Performance |
| Sound | Pmarusama | Theme Song Performance |
| Production | Keiji Ota | Executive Producer |
| Production | Fumiki Yamazaki | Executive Producer |
| Production | Katsuyuki Imai | Executive Producer |
| Production | Asuka Yamazaki | Executive Producer |
| Production | Katsuya Tasaki | Executive Producer |
| Production | Sosuke Asano | Executive Producer |
| Production | Kazunari Okuma | Executive Producer |
| Production | Ryu Takahashi | Executive Producer |
| Production | Hirotaka Kaneko | Executive Producer |
| Production | Norio Fukui | Executive Producer |
| Production | Nobuhiro Oosawa | Executive Producer |
| Visual Effects | miton | Lead Animator |
| Visual Effects | Yuki Matsuguma | Lead Animator |
| Visual Effects | Genki Uchiyama | Lead Animator |
| Visual Effects | Kay Yu | Lead Animator |
| Sound | Yoshiki Kobayashi | Music Producer |
| Production | Kazutaka Yamanaka | Executive Producer |
| Production | Atsushi Takahashi | Executive Producer |
| Production | Katsuhiro Takei | Executive Producer |
| Production | Takurou Hatakeyama | Producer |
| Production | Mitsuteru Hishiyama | Producer |
| Sound | Naomi Fujita | Sound Mixer |
| Art | Hiroshi Inoue | Assistant Director of Photography |
| Crew | Mitsuki Tsugioka | Special Effects |
| Art | Masayuki Niitsuma | Art Designer |
| Crew | Nekotoufu | Creator |
