On his first day of high school, Kyousuke Akazaki is elated when a cute girl, Teru Aoi, greets him by seeming to ask him out. Unfortunately, he soon realizes that what she really meant was that she wanted him to be a hero of justice with her, and help her assemble a student team of 5 "heros" to fight for "the future peace of the school". Kyousuke, now known as "Red", is reluctantly dragged along with her crazy plans to make their school a better place.