Lu Zeyan, the overlord of Jiangcheng, was terminally ill and kept Su Wan, whom he had secretly loved for eleven years, by his side in the name of forced marriage. He withheld his affection and defended her even though he was sick, silently blocking the Lin family's conspiracy and harm; she was PUA by Qingmei, who hated him to the bone, was cold and humiliated, and regarded his protection as a prison. It wasn't until he fell ill and passed away that the truth was revealed. It was a prison marriage in which life was exchanged for love, and he protected her until his death. She regretted dying for love, which eroded her bones and tortured her heart.