In order to save his mother, Wen Nuan used his innocence to make a deal with Mu Qingqing to become Lu Jingshen's antidote. Just before Lu Jingshen was to get engaged to Mu Qingqing, Mu Qingqing fell into a coma due to promiscuity, so she could only let Nuan Nuan, who looked similar to her, temporarily replace her. After that, Nuan Nuan often faced Lu Jingshen in a dual identity and developed feelings for him. However, due to her identity, she was frequently misunderstood by him: a sadomasochistic relationship began, and the mystery of Nuan Nuan's identity gradually surfaced.
