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...
Yet you're only interested 
in little sisters...
Und du hast nur Imoutos im Kopf …
Pero solo te interesan
las hermanas pequeñas.
Pero solo te interesan
las hermanas pequeñas.
Dire que seules
les petites sœurs l’intéressent…
Però a te piacciono solo le sorelle minori...
Mesmo assim, você só se 
interessa em irmãs mais novas...
А у тебя на уме одни младшие сестрёнки.