Years had passed after the Battle of the Divine Realm. Mushin was purified and redeemed at the hands of the Hero of Hongmoon, Y/N. He had surpassed the celestial beings of the Divine Realm in power and wisdom, becoming the strongest entity in the realms but not without cost. His allies, friends, and all the others had mostly perished in the battle. The beings of the Divine Realm along with the redeemed Mushin and the rest of his fallen allies in the Divine Realm saw it fit to send him to another realm with a couple of volunteers, hoping and praying for their precious hero to find the reason to move forward with life.