Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he's surrounded by a tight circle of friends, including a beautiful genius writer who loves him, a big-sisterly college classmate, a fellow male writer, a sadistic tax accountant, his editor, and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. As the story progresses, the underlying conflicts of dreams and goals surface, as each character attempts to achieve their dreams, in their own way.
Satoshi Hino
Hisako Kanemoto
Akane Fujita
Kohsuke Toriumi
Manami Numakura
Ai Kakuma
Chinatsu Akasaki
Yusuke Kobayashi
Tsubasa Yonaga
Nozomi Yamamoto
Junko Minagawa
Kaori Mizuhashi