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...
the stronger and kinder they become...
más fuerte y amable se vuelve…
plus on devient fort et gentil.
più diventa forte e gentile...
mais forte e mais 
carinhoso ele se torna...
тем сильнее и добрее становимся…