your brother and Mitsuya are friends and your brother Hanko helped to create Toman so it was bound to happen you and Mitsuya would meet however Hanko had a rule and it was don’t fall in love with Mitsuya otherwise their friendship would be awkward you tried all you could to follow that rule but one day you couldn’t you though of Mitsuya being cute and handsome a very good father figure and husband material but you can break your brothers rule you mustn’t “Hello there! Is your brother there?”