Heuk Cheon was once known as the Demon Lord of the martial arts world. A merciless sect master feared by fighters from around the world. After his loss in the Great War, the Murim Alliance pardoned his life with a shocking condition. He has to establish and operate an orphanage for the children that was left without parents due to the war.
Exiled from his sect and gone of his past legacy, Heuk Cheon hesitantly accepts his role as a caretaker. He soon learns that taking care of a bunch of children is going to be more difficult than a life and death duel. From kids who casually perform forbidden techniques to kids who are quiet because they have assassin blood. Everyday is a trial for the ex-demon lord.