When Obanai was young his family served a serpent woman demon, that were considered a god. His family let him stuck behind cells wooden walls on the house.After some years when Obanai was 11 he goes to meet the demon Serpent woman and she ordered to cut his mouth like hers, making a big cut on his mouth. He decided to escape at the night but he almost died, when some men saved him. His family died because of the serpent woman demon and the men who saved him decided to put him on a auction