Boku wa Mari no NakaInside Mari; Boku wa Mari no Naka; Я теперь Мари; ぼくは麻理のなか; 我在麻理体内; 我在麻理體內; 나는 마리 안에; I'm in Mari; بداخل ماري

The manga follows an "angel-like" beautiful high school girl with a certain secret she has been hiding from everyone, and an idle hikikomori (one who abnormally avoids social contact) young man; the highlight of his day is seeing Mari at the convenience store. The story begins as Mari wakes up in her room, but something feel amiss about the room and even her own body.