Y/n can adapt to any situation quickly,thus he's good at underwater fights,mid air battles even someplace hot.

Basically a life where you become friends with Saitama and Genos. Then meet up with the green haired loli. One Punch Man is copyrighted by VIZ Media. This is basically a fanfic, and some parts of the story don't follow the plot of the Anime/Manga. Warning: Story is very biased on how I envision the plot to go. Lots of parts will be very different or completely changed from canon sections. Just saying.