sentences:  The estranged fourth son of , Tousei was born from an exiled Makai Priestess who raised him to become a man of power.After learning of Zedom's existence from a chest in an abandoned house of his maternal family, Tousei deliberately brought a Yin-Self Gate to his home with the emerging Horror possessing his mother and devouring her guests before his eyes.Only able to escape death by the Yin-Self Gate's barrier, the event aroused Tousei and he desired to make use of the Horrors' power.