Chen Baichuan was a reclusive great man in his previous life. Due to a conspiracy, he lost all his cultivation and wandered to the mortal world. He was rescued by Sun Ling'er, an outer disciple of the Qingyun Sect. In order to repay his kindness, he hid his identity and became an ordinary handyman, silently guarding Ling'er and accompanying her through the darkest years when she was bullied by her classmates, had her resources taken away, and her master died. He secretly cleared the way for her, helped her step by step to regain the position of sect leader usurped by her uncle, and watched her grow from a timid girl to a cold fairy in charge of a sect. However, just when Ling'er was about to completely consolidate her power and hold a ceremony for worshiping the soul, due to the backlash of her inner demons and her guilt about Chen Baichuan's identity, she actually committed suicide on the altar, and her soul was destroyed. Chen Baichuan watched his beloved disappear, leaving him with endless regrets, and finally left with her.
When he opened his eyes again, Chen Baichuan was reborn three hundred years ago - the rainy night when Sun Ling'er had just saved him. In this life, he is no longer a patient bystander. He decided to protect her in the most direct way: he would become her Taoist companion, stand side by side with her, and face all the storms together.