Twenty-one-year-old Lin Ru, nicknamed Xinxin, experienced the death of both of her close relatives. She took care of her father's former friend Yi Biao, took her home, and cared for her in every possible way. Coincidentally, Lin Ru and Yi Lingmu didn't know each other at all, because their fathers had a relationship and had played together when they were young, so Lin Ru remembered him, but the man opposite him did have a gloomy and cold face. What's even more coincidental is that the two of them are from the same university. A sudden change forced her to have a strong character and work-study. She studied hard and wanted to get out of society and have a stable job to support herself. She hid her inner feelings and kept a distance from Yi Lingmu. It was not until a better person appeared next to him that she gradually saw her inner world clearly. But was everything too late?