Twenty-six-year-old Qian Yuanshan returned to China to attend her eldest sister's wedding banquet and full-moon banquet. After ten years of absence, everyone held their breath for her return. How Yuanshan left his childhood sweetheart back then, a letter gradually opened the curtain, how Zhao Jing planned to keep Qian Yuanshan, and under the calm lake there was actually a turbulent undercurrent...