“At ten years old, you can be a prodigy. At fifteen years old, you can be a genius. At twenty years old, you’ll just be a normal person.”
Reminded me of this:
https://yoraikun.wordpress.com/2017/09/08/about-the-reckless-girl-who-kept-challenging-a-reborn-man-like-me/
Time to reread it lol, then check this manga out