Doom Breaker

Zephyr is the last human fighting evil in a world abandoned by the gods. When he is killed in battle by Tartarus, the god of destruction, all hope for humanity seems lost. But Zephyr's fate is not sealed—the gods who find his battles entertaining have gifted him a second chance at life, as he is sent ten years into the past, back to when he was a slave instead of the most powerful human alive. Can Zephyr get his revenge against Tartarus and save the woman he loves, or is he doomed to repeat the past?

(Source: Webtoon Entertainment)