Amato Takeru, a high school student, has just moved to Akihabara. He's chosen a house with cheap rent, but with one particular imperfection: a hole in the living room floor. When he peeks into it, a girl pops out... And so begins the hectic life of Takeru and the cat Eto-musume, Nya-tan.
Why did you betray me?!
!لماذا خنتِني؟
Warum hast du mich verraten?!
¡¿Por qué me traicionaste?!
¡¿Por qué me traicionaste?!
Pourquoi m’as-tu trahie, miaou ?
Perché mi hai tradita?!
Por que você me traiu?