The setting of the anime story is divided into two camps, namely the Hero Association and the Freak Association Heroes are divided into S level, A level, B level, C level four levels, the freaks are divided into god level, dragon level, ghost level, tiger level, wolf level, five disaster levels The strength gap of each level is also very huge, the dragon level ghost level is basically a second kill, the hero side, in addition to the S level is basically to play soy sauce, but the strange man from the tiger level has a threat, can bring a lot of crisis to the city, need A level hero to solve, the ghost level can paralyze a city, It needs S-level heroes to deal with, the dragon-level positioning is to be able to destroy multiple cities, and it takes multiple S-level heroes to solve, but the god-level disaster is enough to destroy the crisis of the earth, and only our protagonist Saitama can fight with one.
Saitama three years ago was only a single tiger-level freak office worker, and then after continuous hard training to have the current strength, do 100 push-ups a day, 100 sit-ups, 100 squats and 10,000 meters of long-distance running, after unremitting efforts finally became bald but also became stronger ghost-level dragon level casual seconds, but because he is too strong, Saitama also gradually lost interest in fighting and bored, and later accepted Janos as an apprentice, with a handsome appearance and strong strength, The whole body structure is almost mechanical.
Later in order to join an organization called the Hero Association, through the test to become a professional hero and there will be a salary and fan group, which for the very poor Saitama hope not to be paid attention to is simply a huge temptation, after coming to the registration site Saitama found that the people around him are laughing at him, originally intended to get along as an ordinary person, but also came is sneering, take out all the strength of the Saitama competition Tests have broken the record to eat melon The masses are stunned, but also caused the association to attach great importance to it, Then gave him the title of C-level hero, because the written test score is too poor, when the hero also wants culture, Genos became the seventeenth S-class hero with a double full score of the written test and the physical test, and because of the super high appearance value won a large number of fans, Saitama was jealous of no, and made up his mind to have his own fan group, but no matter how hard he tried, the credit would be divided by the enemy.
Even after he smashed a dragon-level meteorite before rising to the fifth place of the C level, the plot came to the first climax, a strange man with a disaster level of ghost level Deep Sea King appeared in J City A level B hero in front of the ghost level freak like an adult and a child, even the S level hero sexy prisoner was killed by his punch, even Genos could only fight with him, and in order to save the little girl was burned into slag by strong acid, and finally relied on the C level first undocumented knight to delay to support Saitama. When the King of the Deep saw Saitama, he punched him on the bald head, but the King of the Deep was punched through the body by Saitama after this incident, Saitama was promoted to a B-level hero, because Saitama deliberately said that the King of the Deep was weakened by the heroes to easily defeat the King of the Deep.
But this matter Saitama harvested a fan unlicensed knight, the undocumented knight is an ordinary person without any superpowers, but there is a heroic dream in his heart that he knows that death is also in front of the masses, Saitama also appreciates him, a few days later, the hero association convened all the S-class heroes to discuss a big event Saitama also followed Jenos to the headquarters, saw the S-class hero on the seat, from the mouth of the management to learn that the association prophet left a note before the death of the god-level disaster is coming, did not expect the language to be quite accurate, The next second City A was in ruins.
Poros, the strange man who destroyed the earth in the language, came to Earth with his space battleship, he learned through the prophets of other planets that the earth has people who can fight with him, he spent twenty years dominating the universe to earth, his subordinates are also powerful to single out four S-class heroes without falling, Poros is also the only man who can take a punch from Saitama with his body and can also transform in multiple stages, and even a meteor blast will send Saitama to the moon, Poros then unleashed his strongest ultimate light wave but was punched by Saitama, and then used the normal all to defeat Poros, thus successfully protecting the earth, and then the Hero Association also made various adjustments to prevent the tragedy of the destruction of the city from happening again.