Tomb Robber, I Signed in to Upgrade in the Underground Palace

During a heavy rainstorm, deliveryman Zhang Mu accidentally entered an abandoned Taoist temple at the foot of the mountain while delivering food, and accidentally fell into a mysterious underground stone chamber. When he woke up from a coma, he found himself in an ancient tomb, and in his mind came: "Ding - the gold-touching upgrade system is activated." At this moment, his fate completely changed.