Eunho, the strongest in the yokai realm!
He gained the chance to become a human being after losing the woman he loved and killing countless yokai.
After passing the gate of reincarnation by accumulating merit for a thousand years to abandon his immortal body…

He became a human being, held a sword, and learned martial arts for the first time.
But this is very… easy?

(Source: Kakao Entertainment Corp., translated)