The world was once in peril. Wars were fought endlessly, creatures from beyond the Veil invaded the world, and greedy men almost tore the world apart. In the midst of all this madness, the world created Overseers— gifted people granted with unique powers. But that was a hundred years ago. Autumn Mountain Academy is the premier Overseer School in Japan. Here, thousands of the world's most powerful Overseers gather to learn how to harness their powers. But with the world already safe and peaceful, these gifted individuals can only use their incredible powers on the most mundane of things. Cheating in exams, playing pranks on one another, stealing some unlucky freshman's deliciously made bento— no rebellious deed is safe. Only one person is willing to fight against this juvenile idiocy— her name is Ayane Tsukino, a rare S Rank Overseer and president of the student council. Conditions in the school have improved because of her reign, because few people could challenge her overwhelming might. Enter is Hideaki Kimura, a boy interested in nothing but living a stereotypical high school life, maybe have it culminate with a cheesy romance if things go well for him. But his humble dream is shattered when he finds himself clashing with the most powerful Overseer in the school.