Other than some tattoos, Master Jay has scars that look like he was mauled by monsters. Jay is not a medium for hire, nor can he profit from any jobs. For many years, he only works by the wills drawn from a lottery box picked by a bird WEN. Those wills are instructions from the child deity THE THIRD PRINCE (SANTAIZE)

Jay never makes money for these hard missions. Instead, it was to atone for his sins. Jay was a drug addict when he was young.To clear his debt, he stole the deed of his ancestral home to pay his gangster friend. In the end, the gangster burned down the house killing his parents and his sister.

The Third Prince took Jay' s soul to the underworld to witness the hellish tortures his family was suffering on his account. Then The Third Prince offered Jay a deal, if Jay agrees to be his medium, this will atone for his sins, and Jay' s family can earn reincarnation.