Unfortunately for him Saitama was introduced as a C-rank hero in the hero organization. The union that governs all of One-Punch Man's heroes had the protagonist undergo a test soon after the first sagas. Physical tests, mental tests of various kinds: the former all passed without problems, the latter with great difficulty.
And that's how Saitama got a ridiculous nickname and his entry into Class C of the Hero Association decreed the beginning of the last step of One-Punch Man, while his student Genos was already in S class due to his amazing ability. Obviously, Saitama does not go unnoticed and competes in many events, willy-nilly gaining points and slowly beginning a climb. First he gets into class B, then even into class A.
At this point one question is logical: Saitama will never enter S class? Will the protagonist of One-Punch Man manage to become the strongest of them all? His strength would already make him one of the strongest of the group considering how he holds up against Tatsumaki in the manga's current story arc. However, it is necessary for everyone to look at their worth, and this can only be achieved by facing monsters throughout the various sagas.
The question is therefore unanswered at the moment, but it is unthinkable that Saitama will not make his mark and become an almost divine personality in the world of One-Punch Man before the end of the manga, also given the implications of the ending of the saga of the Union of the monsters and the end of the galactic collision with Garou. So, Saitama will most likely arrive in Class S before the end what do you think?
