Despicable insane gong x Paternal and indifferent divorced shou. The story between a youth with a unique psychological disorder and an apathetic doctor. The Devil and His Doctor Wealthy and handsome, yet mentally unstable—He Yu has returned home from overseas with one goal in to win the heart of Xie Xue, the girl of his dreams. However, in his time away, he has nursed more than unrequited feelings. He must confront his long-held grudge against Xie Xue's overprotective brother, Xie Qingcheng, who doesn't think He Yu capable of love. But history is not easily rewritten. As He Yu's former doctor, Xie Qingcheng is the only person in the world who truly understands He Yu's volatile mental illness. When the two are involved in an explosive incident that exposes a dark secret, Xie Qingcheng's suspicions about He Yu are confirmed. Now, He Yu must confront his own demons...including his dark obsession with Xie Qingcheng.