In a society with superpowers, evil is no longer something common. Heroes, trained and licensed to protect and defend the public from supervillains, stand out from everyone else. However, not everyone is capable of becoming a hero, and there are those who will use their powers to serve the people without legal approval. Are they playing for justice in the shadows or for reasons known only to themselves? Whatever their reasons, they are called...vigilantes. When you're not a licensed hero, sometimes you need all the help you can find. For Koichi, the unexpected yet not entirely unwelcome help comes from Makoto Tsukauchi, one of his friends from school. Makoto has a confidence that makes Pop Step worried and...jealous? Meanwhile, on the streets of Naruhata, the sly bee user Hachisuka continues the distribution of the "instant evil" drug, Trigger...