I Started with a Furnace of Useless Elixirs, and I Became the Taoist of Tushita Palace.

[System + alchemy + regret + slap in the face + rebirth + fantasy] Xu Qing travels through the world of cultivating immortals. As a son-in-law, he originally wanted to be soft-spoken, but because his wife was reborn, he wanted to find a genius named Xu Changqing to embrace him, so he couldn't wait to divorce him. He was demoted to guard the ruined elixir warehouse in a place where he could not practice cultivation. But accidentally awakened the waste pill transformation system. From then on, the Waste Pill Warehouse became Xu Qing's home! The waste pill that others feared like a tiger became Xu Qing's favorite. Transform the waste elixir and make rapid progress in your practice! Time flies, and the legend of Taozu gradually appears in the world! However, one day, an old man holding a diamond bracelet and riding a green bull found Xu Qing. "You are the Taoist ancestor, then who am I?"