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.
We're so lucky, running into such 
generous people right off the bat!
Was ein Glück, dass wir direkt
so netten Leuten über den Weg laufen.
Qué suerte,
nos encontramos a gente amable.
Qué suerte,
qué personas tan amables.
Des bons samaritains, la chance !
Che fortuna incontrare all'improvviso
 gente così generosa!
Que sorte a nossa, encontrarmos
pessoas generosas assim já de cara!
Вот ведь повезло-то нам!