Cultivation of Immortality Starts from Being a Container

How did the good-for-nothing loser become the Lord of Demons? When he woke up, Li Hao found that he had become the most useless disciple in the world of immortality. Being bullied by his peers and abandoned by his elders, he thought his life had hit rock bottom. Until he accidentally picked up a strange bronze mirror, and the ancient demon king was sealed in the mirror. "Boy, do you want to counterattack? I can teach you the supreme magic power." He thought he was just cheating to cultivate immortality, but he gradually discovered that every time he learned a magic trick, the seal of the bronze mirror became looser. When the last seal was lifted, the Demon Lord chuckled: "I forgot to tell you that the day the technique is completed is when you and I exchange identities -" Li Hao looked down at his hands that were gradually becoming transparent, and finally understood that the price of this counterattack was to become a sacrifice for the next bronze mirror...