I Became a Disciple of Guixian, and All the Master Taught Me Were Dirty Tricks.

When he opened his eyes again, Li Yan realized that he was in another world and had become the raw material that was about to be refined into a magical weapon. After finally escaping from danger, with the help of his past life memories and the newly activated [Peeping Eyes into the Sky], Li Yan knew that in this world, there were not only ways to become an immortal, but also weird things that mortals couldn't see. Li Yan became a disciple of three mysterious immortals, and learned a series of "underhanded tricks" that should not have appeared in the world. He used these tricks to develop and grow stronger step by step, and finally relied on the "underhanded tricks" to gain the upper hand and become an immortal. "Master, your skills back then were not sinister enough, let alone dirty enough..."