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.
Or you could go to some ruins 
and find treasure chests,
O pueden ir a las ruinas
y encontrar tesoros
O podéis ir a las ruinas
y encontrar tesoros
Ou fouiller les ruines pour des trésors,
ou bien chasser des monstres.
Oppure potete cercare tesori tra le rovine
Ou vocês podem procurar por
tesouros em alguma ruína
Можно отправиться
на поиски сокровищ,