Qian Lüe. Wo Yu Mao He Tianshi Tongju.

A high school teacher named Satoru Mizukami discovers three cats and a girl named Mio, approximately 15 years old, left abandoned by the roadside and brings them home. Mio recalls little about her past but can communicate with the cats and possesses surprising knowledge about otaku culture. These unusual traits stem from a sinister plan orchestrated by angels in the heavenly realm. The story explores the uncertain future of Mio, Satoru, and the cats.