Tomb Raider King: End Line

The hero who saved the world and the King of all the Relics, the Majesty Jooheon Suh. He lives a "peaceful" life exploring and raiding tombs for the sake of his future daughter until he is prompted by the Rule Book to take part in the Majesty War. Initially dismissive, Jooheon intends to ignore the Rule Book's odd demand until his daughter's existence is removed from this world. With the knowledge that god-rank relics are behind his daughter's disappearance, Jooheon takes a stance against the relics and fights against the anomalies brought about by his strange encounter with the Rule Book. Even if he must face literal gods, Jooheon will stop at nothing to bring back what was his.

(Source: Webtoon Entertainment)