In a world of superhuman beings, Saitama is a unique hero, he can defeat enemies with a single punch. But being just one hero in a world filled with them, his life is empty and hollow: he gets no respect from anyone, he displays a laidback attitude to everything and for the most part, he finds his overall hero life pointless... and worst of all, he lost his hair due to intense training. These are the adventures of an ordinary yet extraordinary hero.

Moritaka Mashiro, a junior high school student, content to live out a relatively normal life as any other does, is persuaded by his classmate, Akito Takagi, to become an aspiring mangaka when the latter realizes his natural talent as an artist. However, Moritaka is reluctant to pursue his dream as his uncle, once a mangaka with his own serializations, died from overwork trying to regain his lost status. With Akito's help, Takagi gets another classmate and his school crush, Azuki Miho, who is an aspiring voice actress, to voice in the anime adaptation of their future manga once it is completed. However, Mashiro also proposes to Azuki, who surprisingly accepts only on the condition she will marry him when both of them have achieved their dreams. With a goal set before him, Mashiro begins a long and struggling path to become a famous mangaka. Source: AnimeNewsNetwork