1935, Shanghai Beach. Shen Qingyue, the daughter of the Shen family, was forced to return from studying in the UK. What greeted her was not only the crisis in the family's textile industry, but also a marriage coveted by all parties. Her father arranged for her a taciturn new bodyguard, Lu Chenzhou. She didn't know that this seemingly ordinary man had a yellowed engagement contract hidden in his arms and a bloody feud on his shoulders. The ten-mile foreign market is as prosperous as a dream, and the undercurrents of forces from all sides are turbulent. When gunfire rang out at the charity dinner and he blocked the bullet for her with his bare hands, Shen Qingyue suddenly realized that the man who was guarding her window day and night had more than just loyalty hidden in his eyes.