Time flies quickly, in the university, everything in Qingyuan seems to be arranged by some kind of force, doing the same thing as others, getting up, going to class, occasionally going to class, sleeping, eating, going to the library, sleeping, and repeating the cycle indefinitely... At school every day, when the lights went out at 11 p.m., he stayed up until 11 p.m., as if he thought that the lights went out could bring him spiritual comfort, but he didn't know why. When the lights went out, he felt a burst of emptiness in his heart, feeling that his heart had been filled, but now he was alone, and he had tried to recall everything that had happened, trying to grasp the little memory that was left, but he couldn't do it, that memory had been sealed in his heart.

The days passed like this, everything seemed to have started again, he thought that he would spend four years of college in such a peaceful way, graduate and go to society, become a teacher who burns himself to illuminate the way forward for students, have a sweet love, get married, have the crystallization of love, and spend his life like this. But she didn't expect that an email would break the peace of her life.

At the end of the self-study that night, he returned to the dormitory, as usual, turned on the computer, wrote copywriting, illustrated pictures, made pictures, edited videos, he participated in a student organization in the school, completed daily tasks, although there were many club organizations, he only chose this one, because he felt that it was a pity to learn practical skills, and more importantly, he met his favorite person here--- Qing'er. The first time they met, they just greeted each other in a friendly way and smiled at each other. He didn't know that Qing'er was his disaster, and he didn't know that this disaster would make him lose himself, lose his way, and even think about giving his life. As he completed his task, he thought about Haruh's smile. The warmth was broken by the ringtone of the mobile phone--- it was an email:

"Qingyuan, I haven't seen you for a long time, are you okay? Let's have fun in college. I had to do this, but please forgive me, we may meet again! ”

The email was not signed, Qingyuan felt inexplicable, didn't take it to heart, and continued to edit the video. There are all kinds of information on the Internet, and maybe a phishing website is targeting him again. But the strange thing is that from that day on, every night at 8:30 p.m., an anonymous email will be sent to the mailbox on time:

"Qingyuan, have you forgotten me, why didn't you reply to me? Forgot who I am? ”

"Qingyuan, it's been 2 years, I've been thinking about you every day, I don't know if you're the same as me, wisps of breeze turn into thoughts and blow to the seaside of youth."

Every day is like this, Qingyuan has become accustomed to it, he can't remember it, so he gives up thinking about it, but whenever the lights go out, it seems that a girl appears in his memory... Until he saw this one:

"Qingyuan, I learned the news from the people around you, you seem to have lost your memory, and you have forgotten my memory completely, you can rest assured that I will remind you of it, and our agreement."