What kind of story is this: 17-year-old Su Man picked up the basketball that rolled to her feet on the playground, and also lost the ignorant heart of a young girl. "I'm waiting for you at Tsinghua University." Many years later, Song Yi has forgotten these words in the corner of time and no longer remembers them. But the girl who picked up the basketball was always in her heart. She followed his footsteps and appeared everywhere he appeared, but she never had the courage to walk up to him and say: "Hello Song Yi, my name is Su Man, and I like you." After an unexpected reunion 11 years later, Su Man is no longer the ordinary girl with low self-esteem, and Song Yi is no longer the young man with a sunny smile. When she mustered up the courage to boldly pursue love, she didn't know that when she stared into the distance, there was another pair of eyes staring back at her, as if she was holding a strong secret that she would never say.