Xia Weinuan marries wheelchair-bound Lu Yunshen as her sister's substitute to reclaim her mother's heirloom. Initially mistreated as a spy, she gradually wins his trust. As they overcome schemes from both families, Yunshen reveals his recovered legs. Though separated by Lin Yue's manipulations, the truth reunites them, culminating in Yunshen taking a knife for Weinuan before their grand wedding.
