At 23, Qi Xu had loved someone for a very, very long time. It had been so long that she had forgotten whether her feelings were as strong as ever or if she simply couldn't let go. Either way, she couldn't save herself from them. She had to find him, because he was the sun in her darkest days, the one who had made her entire youth unforgettable. Xing Jiashu, I have to stand in front of you in person and hear you explain why you disappeared for so long. Xing Jiashu, I miss you so much!
Yet when Qi Xu finally found Xing Jiashu, all she felt was overwhelming guilt. I'm sorry, Xing Jiashu. It was all my fault for making you wait so long. You must have had such a hard time. Xing Jiashu, let's stay together forever and never part again, okay?
At 23, Xing Jiashu also loved someone he had cared for a very, very long time. But he didn't dare to see her, and he couldn't see her. All he could do was follow silently behind her, like a shadow sleepwalking in pursuit of the light.
But when Xing Jiashu saw Qi Xu again and looked into her tear-filled eyes, he realized he had been wrong, completely wrong. The girl he had thought of every day hadn't been doing well at all. Qi Xu, I'm sorry I made you search for me for so long. Can you forgive me?
The butterfly disappeared, and at last, 23-year-old Qi Xu and Xing Jiashu moved on from the year they were 18.