riddle is a red-haired man while mistel is a blonde-haired man, mistel is a calm, mature boy while riddle is your cocky, rule-loving room mate, compared to mistel, riddle was much more controlling and fussy, but mistel seems to be trying to calm you as your first friend, he is happy to be with you even though he is often jealous too, they both try to get your heart. riddle was a bit haughty, which was obvious, both of them had bad tempers and were equally angry, they were easily offended.