In order to cheer Haruto up after his anime was such a flop, Itsuki gets him as well as Nayuta, Miyako and Chihiro together so they can play a TRPG. Itsuki usually plays girls in games, but for some reason, Chihiro makes out their character to be Itsuki’s character’s little sister, which leads to Nayuta and Miyako also making their characters sisters of the other two. Haruto becomes the GM and does whatever he wants.
Let's go to an inn and relax by 
having sex, Tsukiko-oneesama.
Suchen wir uns doch ’ne Herberge zum Poppen,
um uns etwas zu entspannen, Tsukiko-oneesama!
Vamos a una posada a relajarnos
teniendo sexo, Tsukiko.
Vamos a una posada a relajarnos
dándole al sexo, Tsukiko.
Allons à l’auberge nous délasser
dans des ébats torrides, Tsukiko !
Andiamo in una locanda e rilassiamoci 
facendo le porcellate, sorellona Tsukiko!
Vamos para uma pousada para
relaxar com sexo, Tsukiko-oneesama.
Первым делом найдём гостиницу
и займёмся сексом, чтобы расслабиться!