Martial Arts: Killing in the World of Mortals, Escaping from the Sword

Gu Shisan was reborn in the world of mixed martial arts. He earned the name "The Thirteen Swords of Guan Ming". Someone asked him. "Why is your sword black?" "Because it's often stained with blood." "Gu Shisan, how many people have you killed?" "I can't remember, my heart is also black." "You are such a terrible man!" "The person more terrifying than me is Jiang Yuyan." … The story begins with meeting Jiang Yuyan. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.