Su Wanqing, the daughter of a guilty minister, was forced to marry the prince Gu Zhaoting, who was a tomb keeper, on her behalf because her father was falsely accused of collaborating with the enemy and her family was ransacked. She originally wanted to get close to the royal family through Gu Zhaoting for revenge, but found out that Gu Zhaoting was the one who ransacked the house back then. She hid her identity and guarded the tomb out of guilt. The two went from misunderstanding and confrontation to gradually falling in love. During this period, they experienced being framed by a traitor, the truth was revealed, and revenge was successful. In the end, Gu Zhaoting died due to the recurrence of his old injury. Su Wanqing guarded the tomb for the rest of his life, interpreting sadomasochism with affection.
