Some kids were rebellious....

In an alternate world, in a nameless totalitarian city, the autocratic Mayor rules the school system with an iron fist. Fighting against the Mayor and his repressive Educators is a group of former students called the Truancy, whose goal is to take down the system by any means possible--at any cost.

Fifteen-year-old Tack is just trying to survive. His days are filled with sadistic teachers, unrelenting schoolwork, and indifferent parents. Things start to look up when he meets Umasi, a mysterious boy who becomes Tack's mentor.

Then someone close to Tack gets killed in the crossfire between the Educators and the Truants, and he swears vengeance. To achieve his purpose, he abandons his old life and joins the Truancy, looking for an opportunity to confront Zyid, its enigmatic leader. But Tack soon finds himself torn between his desire for revenge and his growing sympathy for the Truants...

Fifteen years ago, the Mayor of the Education City was presented with an unwelcome surprise by his superiors: twin six-month-old boys. As the Mayor reluctantly accepted the two babies, he had no way of knowing that they would change the city forever....

Raised in the comfort of the Mayoral mansion, Umasi and Zen are as different as two brothers can be. Umasi is a good student; Zen an indifferent one. They love their adoptive father, but in a city where education is absolute, even he cannot keep them sheltered from the harsh realities of the school system. When they discover that their father is responsible for their suffering, affection turns to bitterness. Umasi and Zen are thrust onto two diverging paths. One will try to destroy the City. The other will try to stop him.