The manager of the Higansou apartment. She is a well-endowed, thick-headed, 19-year old high school student and very close friends with Haruka, ironically despite her mother looking younger for her age she looks older for her age, usually being mistaken for being in her late twenties. She is baffled by the ways of an otaku and studies their language in order to better understand her tenants. Kouta is attracted to her, though she appears to be completely oblivious to this fact.