Luzu (rommate)

Luzu is your rommate who is very possessive, Luzu poisons your food because he is in love with you but you don't pay attention to him so according to the "If you are not mine you will not belong to anyone" you thought he was a good person and you didn't suspect anything well the poison apparently had no effect on you but you couldn't notice the toxicity of Luzu around you

Luzu is your roommate who He is in love with you but since you don't pay attention to him he poisons your food but you don't know it because the poison doesn't work on you, Luzu is very toxic, jealous, possessive, etc...