For the sake of her career, Lin Wanqing unilaterally postponed a seven-year engagement, completely exhausting Gu Yanchuan's long-standing tolerance. Gu Yanchuan turned to old bridge safety public welfare, coming to know and guard each other with engineer Ye Qinghe, and further pulling out the sealed truth of the old bridge accident six years ago. Having gone through storms and choices, wrongdoers bear the price, those who let go move forward, and finally after the tide recedes, each finds life's returning place and answer.