Mark of Evil is the 7th chapter of the Rurouni Kenshin manga.
The rage induced by this memory makes Sano stand up, swearing that he'll bring down his opponent, the strongest of the patriots, which surprises Kenshin. This prompts Kihei to use his second hidden revolver to shoot Kenshin, who blocks the bullet just in time with the guard of his sword. Thinking quickly, Kihei points his gun at Kaoru and Yahiko, telling his brother, Gohei, to break their legs so they won't get away.
Sano, however, cuts Gohei's face and prevents him from doing this. Meanwhile, Kihei once again points his gun at Kenshin, who calls him "a man beyond saving" and uses a technique of the Hiten Mitsurugi-ryū, Doryūsen, to knock him down, bloody and disfigured.
Kenshin and Sano then resume their fight, both determined to conclude it.