He's a young man of average height and build. He has ash blond hair.
His villain outfit consists of a black jumpsuit, matching gloves, and a wireless headset. He also has transparent blue goggles that allow him to swim without closing his eyes, as well as a spear with which to attack his opponents.
After invading the U.S.J., Oxy-Man and other villains head to the Flood Zone, as their Quirks gave them an advantage in that area. There they wait patiently until Izuku Midoriya, Tsuyu Asui and Minoru Mineta are sent to that area by Kurogiri with his Warp Gate Quirk. Despite outnumbering them, the villains are wary of the three students as they do not know their Quirks, until they finally decide to go on the attack.
Izuku uses Delaware Smash on the surface of the water creating a whirlpool that drags in the villains. Minoru then uses his Quirk to launch a large number of sticky spheres into the water, causing all the villains in the water to be stuck together. With her Frog Quirk, Tsuyu escapes the area along with Izuku and Minoru, while the villains are unable to do anything and thus defeated.
Unnamed Oxygen Production Quirk: Oxy-Man's Quirk allows him to produce oxygen for his body, allowing him to dive underwater without drowning.
Battles & Events
|Battles & Events|
- His villain name appear as 酸素-おとこ in the Ultra Archive databook, and written in Katakana as サンソマン (Sansoman) in the Ultra Analysis databook.
- My Hero Academia: Ultra Archive: The Official Character Guide.
- My Hero Academia Manga and Anime: Chapter 14 and Episode 10.
- My Hero Academia Manga and Anime: Chapter 15 and Episode 10.
- My Hero Academia: Ultra Analysis: The Official Character Guide.
|League of Villains|
|Current Leader||Tomura Shigaraki|
|Recruits||Dabi • Himiko Toga • Magne • Moonfish • Mr. Compress • Muscular • Mustard • Spinner • Twice|
|Underlings||Axer • Berserker • Chomper • Dragon • Four-Armed Zealot • Gorilla • Gravitational Spring • Green Gaping Jaw • Hanzo Suiden • Hard Head • Invisible Wall • Martial Hair • Minotaurus • Mummy • Muscle Man • Needle Hair • One-Eyed Green Dragon • Oxy-Man • Sharkyonara • Sharp Blade • Sickle Claw • Steel Bulwark • Stitched Giant • Tesla • Thousand Eyes • Varanus • Victor • Yoshamaru|
|Standard Nomu||U.S.J Nomu • Hosu Nomus • Chainsaw Nomu • Johnny|
|High-End Nomu||Chubs • Eleph • Hood • Ribby • Robot • Woman • Six Unnamed|
|Associates||Giran • Nine|
|Original Members||All For One • Kyudai Garaki • Gigantomachia • Nomu • Kurogiri|
|Locations||Haibori Woods • Jaku General Hospital • League of Villains Bar • Nomu Factory|