Fist of the North Star (1984)

S1E4 Attack the Bloody Cross! The Secret Technique, Death by Soft Strikes.

Ken discovers that Rin and the other captives were sent to a nearby valley's prison camp. He successfully liberates the villagers, but their escape is brutally interrupted by an ambush from Mr. Heart, the final member of the Four Jacks. Although Heart's bulky form withstands Ken's assaults, he ultimately employs a technique that breaks through. Through his confrontation with Heart, Ken uncovers a vital piece of information that points him toward the true identity of King.