Rika moves in with Naoya and the others, and insists that sleeping in the same room with him in a non-sexual fashion should be completely permissible. Naoya agrees, but only if all the girls get to take turns sleeping in his room in a non-sexual fashion.
I want to prove that I would never 
mess with another woman!
!أريد أن أثبت أنني لن أعبث مع نساء أخريات أبدًا
¡Te demostraré que no me sirve
cualquier mujer!
Demostraré que no me vale
cualquier mujer.
Voglio dimostrare che non farò mai nulla 
con un'altra donna!
Quero te provar que nunca faria
nada com outras mulheres!