He has been with the family since Banya was sealed a little over a thousand years ago, and is currently in possession of Banya's orb to allow Banya to move around freely when somebody in the family is born with a spiritual gift, making Koko the Scroll's Contractor. Banya calls him "Meatball", as a result of their first encounter being Koko using his chicken disguise.
He has learned from this experience the importance of first impressions.
During his spare time, he plays a board game with other deities.
- According to Banya, Bong-Hwang "gets mad at the smallest things", and even threw a tantrum when Banya refused to play with him. However, So-Yoon did not believe him.