Hoeguihan Cheonjae Hunter ui Seulgirowun Cheongso-saenghwal

World’s first SSS-ranked genius hunter, Kim Jun-woo. He regresses ten years into the past after being ambushed by unknowns one day. With all his hunter skills now locked, he must fulfill his career as a dungeon cleaner to unlock them. But this cleaner… is extraordinary! The once renowned hunter, Kim Jun-woo, takes over the cleaning duty with vigorous determination.