My Twisted Romantic Comedy

I fell asleep while playing a crappy visual novel. When I awoke, I found myself in the world of the game. But instead of the school life romcom I was expecting, why did the story twist like this?  The protagonist seems slightly different from the original. Plus, this school gives me the creeps. The teachers are hiding something from us and the campus was designed by a madman. On top of everything else, a strange girl has taken an interest in me... All I wanted was a chance to relive my highschool days, but I have the feeling I'm about to be swept up into something far more sinister than I bargained for. --- Supernatural horror mixed with anime romcom parody. Yandere love interest.