Shen Huaijin and Xie Yunci became acquainted because of Su Wan'er's kidnapping case. Later, Xie Yunci used Su Wan'er as a bargaining chip to negotiate terms with Shen Huaijin. Shen Huaijin became his backer, and he helped Shen Huaijin deal with things that were inconvenient for him to do. But none of them expected that a relationship of mutual use would turn into lovers in the end.
