Want to join the Hero Association? The first step is to do 100 push-ups, 100 sit-ups, 100 squats, and run 10 km every single day. The second step is put on a One Punch Man t-shirt. This may be a bald claim but getting the latest One Punch Man merchandise will definitely help you take on any challenger. Keep Z-City safe from Mysterious Beings with all the right One Punch Man gear you can get your hands on.