You can also find the original Japanese runs of the two season series now streaming on Hulu. They describe One-Punch Man Season 2 as such: “Saitama is a hero who only became a hero for fun.

One-Punch Man Volume 30 Unveils the Manga’s Best Cover Art Fans of Saitama might be waiting for the hero for fun’s anime comeback, but the manga is still cooking.

Although season 3 of One Punch Man will cover a bulk of the arc, the beginning of the arc actually started towards the end of season 2, starting with Sonic being offered to eat a monster cell.

As for the futuristic technology of One-Punch Man, well maybe it all got destroyed somehow before My Hero Academia. But then again, the tech on display in MHA is nothing to sneeze at either.