 Fukunaga (aka Fuku) is Shigeta's roommate and best friend.Fuku is a slightly older and significantly more grounded female character in the story who's relative success with men and more laid back demeanor serve as useful contrasts to Kayoko.Yuko Tanabe another worker at the bookstore, Yuko is a plain looking girl who Kayoko is angered by when she finds out that Yuko has a boyfriend.