A manga series that makes quite an impression!

Nothing about Saitama passes the eye test when it comes to superheroes – from his expressionless face to his bald head and his unremarkable physique. Yet this average-looking guy has anything but an average problem – he simply can't find an opponent strong enough to challenge him! For three years, Saitama has defeated countless monsters, but no one knows about him. That's because he isn't registered with the Hero Association! Together with Genos, Saitama decides to take the Hero Association's exam! But will they pass?.