Harsh cruel brutal extremely powerful and skillful as a warrior. Real butcher. He killed every single person in country of Hi Fire followed by order from Himikosama. But after he met Nagi something changed him. In past his clan was annihilated he is only survivor. Has been taken to Yama Tai Koku. His name consist of three kanji: monkey saru rice field ta and boy hiko actually very old one. Maybe its mean nothing but it can help understand in some way his personality.