Decelis Academy is the best Academy in town and, in fact, in the whole world. Decelis is known for having the best students, with amazing abilities and knowledge, known for their "superpowers", like how people say about them. No one can best them in anything, not even humans. But people don't know that this Academy has its own secret. A secret that has been hidden from everyone for so long, a secret too dark to be talked about, and yet people are not aware of it. But when a mysterious and curious girl comes to this school, things start to change really fast, for her group of friends, but also for the whole school. She is stubborn, and she has the desire of saving everyone, even if it means to sacrifice herself for that. But her friends are always there for her, and they would do anything to keep everyone safe from the darkest secret of Decelis, and even from their own secret. And, after Aera starts to assemble the puzzle of Miss Hirai's biggest desire, everything starts to make sense, but turns into Decelis' biggest nightmare, and we all know how strict this school is and also Miss Hirai... But, one thing is certain. Rules are meant to be broken.