Lin An's life was split in two by an obsession that had lasted a thousand years.
Pei Chengzhi, the last person to ascend from the path of ruthless cultivation, killed his wife to prove his Dao, then spent a thousand years in regret. That thousand-year obsession drove him to search for his reincarnated lover, Xu Ruochen.
Pei Chengzhi took over Lin An's body, and the two made a deal: Pei Chengzhi would help Lin An reach the peak of his career, while Lin An would lend him his body so he could find and get close to Xu Ruochen.
With two souls in one body, Lin An could feel every moment Pei Chengzhi spent with Xu Ruochen. Day by day, he too fell for him.
By day, Lin An and Xu Ruochen went on dates everywhere, kissing on the Ferris wheel and carrying on a forbidden romance in the office.
At night, Pei Chengzhi would control his body and "torment" Xu Ruochen's body all the more, expressing a thousand years of longing that way.
Xu Ruochen was enthralled. He thought his boyfriend was mysterious and somehow divided.
What he didn't know was that every intimate encounter entangled all three of them.
Lin An found it disgusting, yet he was utterly addicted.
He could no longer stand sharing his lover with someone else, so he spent a fortune establishing a research institute, all to drive Pei Chengzhi out of his body.
Then Xu Ruochen recovered his memories of his past life and stabbed this body, just as Pei Chengzhi had once pierced him with a sword.
And so Lin An died, becoming a restless ghost who couldn't find peace. He could only watch helplessly as Pei Chengzhi occupied his body and obsessively clung to Xu Ruochen.
Fine. If we're all mad, then let's keep this entanglement going until our souls scatter.
"Xu Ruochen," two voices overlapped in his mind. "Who do you love, really?"
Xu Ruochen is the gong. His past-life self and modern-day self are the same person. Lin An is not Pei Chengzhi's reincarnation; they are two separate people. In the beginning, Pei Chengzhi takes over Lin An's body. After Lin An dies, he becomes a ghost and returns to fight for his body.
Theme: Learn to let go