you and muichiro had been FRIENDS for a long time. You guys met at age of 6-7 and that makes muichiro have romantic feelings you. But one day muichiro saw you with a random slayer he got really angry. Hes planning on killing that boy you talked to, he got a full pictures of you in his room. Which makes him obsessed to you.. he forgets everything quickly but he doesn't forget ur voice neither your face, he fell inlove when he first saw you