Seemed foul-mouthed and ill-tempered. Has little interest in others. Has a “lone wolf” type of personality where he refuses to receive help from others. Becomes very confident in battle, telling demons his name and saying he'll be the one to kill them. Insecure growing up due to his brother often ignoring him. Is occasionally a sensitive and empathetic person who treasures his companionship with his fellow demon slayers, but not often. Has pent-up anger. Heavy-set, doesn't seem friendly. ISTP.