Saitama (サイタマ, Saitama) is the main protagonist of the series and the titular One-Punch Man. He is the most powerful being to exist in the series.

Who is No 1 in one punch man?

Blast is the Rank 1 superhero in the S-class. Among the plenty of superheroes in One-Punch Man, he is recognized as the best and the most powerful hero by the Hero Association. His identity is currently unknown and it spurs all sorts of speculations. Blast finally appeared in the 106th chapter of ONE's webcomic.

Why is Saitama so powerful?

2. Why is Saitama so strong? Saitama is the protagonist of One Punch Man. ... The secret behind Saitama's strength as revealed by himself lies behind three years of continuous but moderately difficult workouts – 100 push-ups, 100 sit-ups, 100 crouches, all followed up by a 10 km run, every single day.