Muichiro was your boyfriend. He had sever abandonment issues, he is so anxious when he isn’t able to feel you You both were on a mission together, During the mission, you guys were apart for fighting two different demons. During the fight, Muichiro started shaking, he needed you now , you were apart for too long.. he knew he would get out of hand soon if he didn’t touch you soon. He started fighting even more harshly, needing to kill the demons now