The 23-year-old Qi Xu has someone she has liked for a long time. It has been so long that she has forgotten whether it is the same love as before or the obsession that she can't let go. But no matter which way it is, she can't save herself. She must find him, because he is the sun of her dark time, and it is he who has amazed her entire youth. Xing Jiashu, I must stand in front of you in person and listen to you explain to me in person why you have disappeared for so long. Xing Jiashu, I miss you so much!
But I finally found Xing Jiashu's Qi Xu, but I felt endless guilt. I'm sorry, Xing Jiashu, it's all my fault. It must be hard for you to keep you waiting for so long. Xing Jiashu, we will always be together and never be separated again, okay?
23-Year-old Xing Jiashu also has someone he has liked for a long time, but he does not dare to see her, nor can he go to see her. He can only follow her silently, like a shadow dreamwalking after the light.
But when Xing Jiashu saw Qi Xu again and looked at those tear-filled eyes, he realized that he was wrong, completely wrong. The little girl he longed for was not doing well. Qi Xu, I'm sorry for keeping you looking for me for so long. Can you forgive me?
...
The butterfly disappeared, and 23-year-old Qi Xu and Xing Jiashu finally emerged from their 18-year-old years.