This was an idea I got based off re-reading a few ^spicy^ comics and from a headcannon of mine. Basically, Hajime and Izuru share a body and can take control whenever they want, pushing the other into the mind. The one who's chilling in the mind can put thoughts into the other's head and stuff like that. And, when one of them takes over the body, their body morphs into whomever it is. Ie. It would turn into Izuru if he was in control and it would turn into Hajime if he was in control.