Kill the Hero is a dark fantasy action manhwa that follows Woojin, a survivor of a world overrun by monsters who is betrayed and killed by the hero he trusted, as he returns to the past with a burning desire for revenge against the so-called hero. As he uses his knowledge of the future to grow stronger and undermine the hero's rise to power, gathering allies and preparing for the ultimate confrontation, the narrative explores themes of revenge, betrayal, and the dark side of heroism with intense action and moral complexity. Blending dark fantasy, action, revenge, and time travel elements with anti-hero premise, the series delivers a thrilling revenge story that appeals to fans of dark isekai and revenge narratives. Also known as Kill the Hero manhwa, hero revenge, dark isekai, and action thriller.