Itsuki Hashima is a popular, young novelist. However, he is obsessed with little sisters and his works seem to always include little sisters, so there’s some difficulty coming up with a new series. One day, his younger step-brother Chihiro and his colleagues, Hayato Fuwa, Nayuta Kani, and fellow college student, Miyako Shirakawa show up at his apartment. They enjoy dinner, drinks, and a game. That night, Nayuta makes advances towards Itsuki, but...
My works depend on the heroine 
being the little sister.
Bei dir, Onii-chan … Würde mir das nichts ausmachen …
Mi trabajo depende de que la heroína
sea la hermana pequeña.
Mi trabajo depende de que la heroína
sea la hermana pequeña.
Je dois me contenter de petites sœurs
comme héroïnes…
I miei lavori dipendono tutti dall'avere
una sorellina come protagonista.
Meus trabalhos dependem da 
heroína ser uma irmã mais nova.
В моих книгах
главной героиней может быть только сестра.