Become Metahuman After Open Mysterious Box at Mysterious Dungeon

The protagonist is an ordinary human who has long striven to obtain a divine blessing and become a Metahuman, yet no god has ever bestowed such a gift upon him. One day, he accidentally finds himself trapped inside a mysterious dungeon. There, he encounters a beautiful girl holding a box. Driven by curiosity, the protagonist opens the box and immediately receives a blessing from it, transforming him into a Metahuman with the power to steal the blessings of others.