A cunning and intelligent mentalist Prodigy, Rei has a like for being loved by people unconditionally- often not to give the people he befriends joy but instead to fulfill his need to feel special and loved. He tends to view people as tools first before he sees them as humans. However, occasionally there are people he genuinely cares for and loves unconditionally. Behind all his masks he's just a scared little boy who wants to be loved.