1 Mwaka
12 Chikamu
この中に1人、妹がいる! - Season 1 Episode 1
During his father’s funeral, Shogo hears a voice outside his window claiming to be his little sister, before he has a chance to learn more, he is told the conditions of his inheritance.
- Gore: 2012
- Nyika: Japan
- Genre: Drama, Animation, Comedy
- Studio: TBS, MBS, CBC, BS-TBS
- Keyword: harem, romance, school, ecchi, anime, based on light novel
- Mutungamiriri: Hajime Taguchi
- Cast: Arisa Noto, Rikiya Koyama, Aya Hisakawa, Takahiro Sakurai, Rina Hidaka, Kaori Ishihara