Naoki Mizushima, a first-year high school student, spends his days being bullied and used as a practice dummy for pro-wrestling moves by his classmate, Tsukamoto. Just when he feels completely powerless, something strange appears before him — a mysterious smartphone app called “The Fight App”? According to its suspicious description, landing a hit on someone earns you points, which can then be used to learn new combat techniques useful in battle… Desperate and with nothing to lose, Mizushima installs the app and gives it a try… But to his shock… it actually works?! Can Mizushima use The Fight App to finally protect himself…?