This story is purely fictitious and any similarity is purely coincidental.
The older leftover girl had an accident while trying to save her idol while chasing stars. When she woke up, she found that she was reborn ten years ago and became a classmate of her idol who was still in high school at the time. What kind of incredible youth stories will happen from this? Maybe you can think of it as a star chasing diary, but it actually has a rebirth plot; maybe you can think of it as a time travel story, but it turns out to be a youth novel.
Conception: