The first narration perspective tells the life of a girl from 0 to 24 years old.
"She has remembered her childhood, youth, and youth all her life. She has been recalling them all her life. She can't grow up, and she can't even grow old."
It's a bit like a crappy diary, where the story only revolves around the main character.
If you've seen it, just laugh at it. Don't pay attention to the details. The protagonist only describes the most memorable things, and the time jump is huge.
Purpose: I hope everyone can have a happy time