>>10062
>>10065
Neither him nor other heroes will win fights against the bosses of each arc (Sea King, Boros, Centipede, etc). Saitama will. That is the joke and the point of the parody of both western and eastern works. In the west we have guys like Superman and Thor who make other heroes unnecessary against the top threat. In battle manga, we have a central protagonist and friends. You can count that MC will win against the boss of each arc. One Piece is a good example.
Although, when it comes to Genos, even if we know that he will lose his fights are some of the best in the manga just for the amount of coolness and effort he puts in each one. I really like his character.