The first edition of Oblivion follows ARMS and Special Class 12A, an elite unit personally formed by Sheila Kunene—the president of the organization and one of its most legendary agents. After taking down Apollo, a superhuman serial killer who terrorized entire cities, Sheila finds herself on the edge of burnout. She's been on the frontlines since she was 18, and the cost is finally catching up to her.

But rest won't come easy. A hidden organization is undermining everything she's built. As she investigates their true benefactor, Sheila entrusts Class 12A with the future of ARMS. This isn't just another class—it's her legacy, carefully selected to carry the weight of the organization and confront the unseen threats rising in the shadows.

As the students juggle academics, powers, relationships, and their future careers, they're also being shaped into something far greater—leaders in a world teetering between order and chaos.