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...
Like when the protagonist's parent 
was some legendary adventurer,
rausstellt, dass die Eltern des Protagonisten legendäre Abenteurer sind oder so.
Como cuando el padre del protagonista
era un gran aventurero
El típico padre del prota
que era aventurero
Le père du héros qui est en fait
un aventurier légendaire,
Pensi a quei protagonisti guarda caso
figli di qualche leggendario avventuriero,
Por exemplo, quando o pai dele
 era um grande aventureiro,
Бывает же, что родитель героя —
всемирно известный авантюрист!