Grappler Baki: The Ultimate Fighter

Overview

His name is Baki Hanma. No one knows where he came from or where he learned his unique fighting style. When it comes to Karate, Baki Hanma is just plain GOOD. He can defeat an opponent with a single blow and he's taking the Karate Championship by storm. In a prestigious match, he defeats competitor after competitor even though he's totally unknown and barely even ranked. But now he's in for the fight of his life and he may have just met his match. Anything goes and his opponent can rip his nerves out -- literally. If he wins, he's the BEST. If he loses... he's DEAD. (Source: Central Park Media)

Source: AniList