One Punch Man: Road to Hero

A fledgling hero battles a street gang to save his tailor, discovering the real meaning of power.

Long before the bald hero’s infamous one‑punch victories, Saitama was a scrappy trainee battling petty monsters and his own stubbornness. Clad in a threadbare tracksuit that never seemed to stay repaired, he relied on the kindness of a neighborhood tailor who patched his costume for free after every bruising bout. When the tailor receives a veiled threat from a local gang and is forced to shut his shop, Saitama’s sense of duty kicks in. He steps beyond the usual hero‑for‑hire gigs and decides to confront the thugs head‑on, discovering that true strength isn’t measured by how many foes you can dispatch in a single blow, but by the willingness to protect the ordinary lives that keep the city humming. In the process, Saitama uncovers a deeper connection to the community he’s sworn to defend, gaining a priceless sense of purpose that no training regimen could ever provide.

This prequel OVA shows young Saitama's hero training through comedic, over-the-top battles against monsters and a local gang. Expect stylized but bloody action violence typical of the franchise, with minimal sexual content or mature themes beyond the superhero parody tone.