Description: The year 25XX. A world where mankind can only live in isolated colonies. The protagonist, a student at the academy, was bored with the drudgery of everyday life. A day-to-day untouched by gossip about "Heroes" and "Vermin," the enemy of mankind, or the good-looking guys at the academy. One night, she slipped out of the dormitory and fell upon colony-invading Vermin, landing herself in a dangerous situation! However, four girls appeared and repelled the Vermin with miraculous abilities. In the aftermath of the event, the protagonist decides to work as a Hero, leading a busy life as both a student and champion of justice. But why is it that she has more opportunities to talk to the good-looking guys everyone is talking about? What is their (the girls' / guys') secret? And what is the enemy's true identity?