Gu Xuzhi is the master of Tiancheng Peak in the Wanling Sect. Everyone says he is an immortal-obsessed man who cares only about honing himself through trials. But he has a secret agenda: he is searching for a woman who shares his sensations, his long-lost younger sister, Gu Muyi.
Gu Xuzhi was a retainer of the Heavenly Silkworm Clan. Because the clan's bloodline could greatly boost one's cultivation, it was hunted down by a group of strangers. To protect its last surviving heir, Gu Muyi, their mother used a secret art before she died, giving the two siblings the same fate and tying their lives together. She only wanted him to protect Gu Muyi and keep her safe for the rest of her life.
To escape their pursuers, the siblings were separated. Gu Xuzhi became a disciple of the Wanling Sect's leader, and at a young age he became the master of a peak. He spent his days below the mountain slaying demons and banishing evil, quickly becoming famous throughout the land.
Nine years later, at a banquet held in his honor, Gu Xuzhi had not touched a drop of wine, yet hurriedly excused himself on the pretext that he could not hold his liquor. In truth, something strange was happening to his body. The usually stoic man, unmoved by anything, instantly turned vicious and raced off like a madman. He kicked open a door and stared at the familiar figure inside, with chaos strewn across the floor.
A few days later, rumors spread through the cultivation world that the reclusive master, who supposedly feared women to the point of illness, had gone mad over a woman, stolen another man's wife, and carried her back to the sect in full view of everyone! He said she was his sister! A month later, another rumor claimed that the reclusive master had lost his mind over his sister, causing trouble for the sect every day and even wanting to take her as his disciple! Years later, people heard that the reclusive master had gone crazy over his disciple and wanted to become her cultivation partner. From then on, they would be devoted to each other forever!
The male lead is restrained and self-controlled early on, then turns to seduction without even realizing it.
The female lead is innocent and naive at first, and later only wants to tease the male lead.