A bit of Saitama's, the One Punch Man's, history on the road to heroedom. Just as bizarre and funny as any other episode, it shows the origins of his suit, the beginnings of his crime fighting, and more of his penchant for oops moments. It even explains the origins of monsters a bit, dispelling some of the other theories I had about how they came about. It has less action than the other episodes but I believe it's an important part of OPM to watch because it emphasizes what this show is about: a simple man, simply drawn, who's a hero for fun, who becomesthe most overpowered man in anime.