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.
Your skill is probably going 
to cause the most trouble.
Deinen Skill halte ich am grenzwertigsten …
Tu habilidad
es la que causará más problemas.
Tu habilidad
es la que causará más problemas.
Ta capacité est de loin
la plus problématique…
La tua sarà l'abilità speciale che
probabilmente causerà più guai...
Sua habilidade vai nos
causar vários problemas.
Твоё умение опаснее всего…