Story
The Buddha of Fighting descends to the human world! An incident occurs in which demons escape from hell and hide in the human world. Son Oh-Gong, on the orders of the Jade Emperor, descends to the human world to capture the escaped demons. Concerned that the demons, startled by his extraordinary magical powers, will escape, he decides to hide in the body of an ordinary high school boy, Ryu Ha-Seon. "From now on, I am the Buddha who will return victorious from battle, the Fighting Buddha, the Fighting Buddha, the Fighting Buddha, descends to the human world!"
Synopsis via AniList (English).
