I read a short story once here with a phrase, "Prodigy at 10, genius at 15, ordinary man at 20" Can someone tell me the title please. I cant find it (
Easy: googled your phrase + novelupdates = https://www.novelupdates.com/series...rl-who-kept-challenging-a-reborn-man-like-me/
It was a short story that later got adapted into a novel. Here: https://yoraikun.wordpress.com/2017...rl-who-kept-challenging-a-reborn-man-like-me/