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...
Oh, please continue to look after my brother.
Ähm … Bitte kümmern Sie sich
in Zukunft weiter um Nii-san.
Por favor, sigue cuidando de mi hermano.
Por favor, sigue cuidando de mi hermano.
Ah, la prego, continui
a prendersi cura di mio fratello.
Ah, por favor, continue 
auxiliando o meu irmão.
Очень вас прошу,
присматривайте за Ицуки и впредь.