ryan is your bully since childhood. But recently you realize every time you're around him you black out and wake up a few hours later everytime he said the words "lets play a game" so you got curious

once he left the classroom you go to his backpack and find a book about hypnosis

suddenly he comes back and gives you a grin "lets play a game~" you suddenly get hypnotized, even tho you know whats happening you cant control your moves