I need help finding this one because it was a good while ago I read it. I know its ntr or cheating.
I remember somewhere in the story the mc is paired with some other girl and this other guy is paired with his gf or crush in an escape room or some kind of escape game. Theyre both locked in seperate rooms and the lights turn on for the MC’s room whenever the other room has some moment or exercises so they end up doing it to keep the MC’s rooms lights on.