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...
A problem like that is nothing 
to someone like me.
So ein Rätsel knack ich doch mit links!
Un problema así no es nada
para alguien como yo.
Un problema así no es nada
para alguien como yo.
Une énigme de ce niveau,
c’est du gâteau, pour moi !
Nessun problema è troppo grande
quando c'è uno come me a occuparsene!
Um problema como esse não 
é nada para alguém como eu.
Да я такие вопросы щёлкаю как семечки!