One-Punch Man is a manga, anime and nowadays, videogame series that began life as a webcomic in 2009 – a drawing exercise for budding artist “One” that found popularity and evolved into a full-bore parody of the shonen action genre. One-Punch Man himself, aka Saitama, is essentially a NEET Superman – an apathetic homebody in yellow pants and red wellies who begins his story as the most powerful superhero in existence, for reasons unexplained.