Himura Kenshin is the main character of an anime/manga which I've known to be called by 2 names, Rurouni Kenshin and Samurai X. In the series he is shown as a wandering swordsman who settles in a dojo where he makes friends, typically those he beats, while trying to effectively atone for his past as a man who slayed many people during the prior war.

This version is what he looked like during the war, I may make a version from the anime which is a different shirt and a variant of his hair which I will put in the description if I finish.

Reference Picture: