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.
I'm a female knight with long black hair, 
and I fight with my sword and shield.
Soy una caballera de pelo negro
y lucho con mi espada y escudo.
Soy una caballera de pelo negro
y lucho con mi espada y escudo.
Sono un cavaliere dai lunghi capelli neri
e combatto con spada e scudo.
Eu sou uma cavaleira de cabelos pretos e
longos, que luta com um escudo e uma espada.
Черноволосая красавица,
сражаюсь мечом и щитом.