September Retrospector

Gu Shencheng, a freshman, was spotted by a mysterious girl Chunxi on his first day of school. "You don't remember me?" - She said. Before he had time to figure out the meaning of this sentence, Chunxi collapsed at the cultural festival. "Snake ring, the power of time. Use it, you can go back in time and change everything." "But every time you use it, the snake ring will tighten -" "The day it is completely closed, you will no longer be human." On one side was Chunxi's increasingly paler face, and on the other was the burning sensation of the snake ring gradually tightening. Gu Shenchen lowered his head and said, "I'm going back." What he didn't know was that every time he went back, there was a part of him that would never come back.