| I realized that I could help these brave folk by serving them good food...that I could ease their burdens just a little bit.
— Hai Yo
Hai Yo was a cheerful, masterful chef who was a member of the Black Dragon Group. Hearing about Jinkai's plans for domination using the Moon Bird Recipe, he was entrusted with the recipe by his lover, Shun Min, at the cost of her life and fled with the group on his heels.
He would appear suddenly at the New State Army Headquarters during the Dunan Unification War, offering to open a restaurant at the castle for the New State Army. He would come to be challenged in a series of cook-off which, though innocuous as first, increased with intensity and danger as the Black Dragon Group located him and sent their agents to recover the Moon Bird Recipe.
Finally, Hai Yo defeated Jinkai in a final cook-off and tore up the recipe, stating that recipes alone were not the key to truly great cuisine. He would continue to serve the New State Army for the rest of the war before returning to Black Dragon Island to put flowers on Shun Min's grave.
Following the war, he re-established contact with Bashok, who had challenged him on behalf of the Black Dragon Clan, and wrote to Huan on his behalf, helping to save the life of Bashok's daughter, Mamie with medicinal dishes prepared under Huan's direction.