After three years of training, Nino enters society as a superhero for fun, donning a yellow jumpsuit and white cape. The only problem is he is too strong for any foe that tries to over Paris, and now finds himself bored.
This changes when he meets Adrien, a blond cyborg who wishes to be trained by Nino after seeing his amazing strength. They both join the Hero Association, which allows them to be recognized in society for their heroic deeds.
Whose Who:
Saitama - Nino
Genos - Adrien
Mumen Rider - Nathaniel
Tatsumaki - Chloe
Sonic - Plagg (Sonic does have a creepy Cheshire cat look)
Boros - Hawkmoth