Ren, a second-year student at Legion Military Academy, lives in Trisha, the capital of the Oswald Empire. Five years ago, the theft of an imperial artifact shattered the world he knew, changing everything and becoming a defining turning point in his life. The tragedy took the people he loved away from him, igniting a deep hatred toward the very empire that was supposed to protect them. Determined to uncover the truth behind the dark incident, Ren finds himself entangled in a mystery far deeper than he could have ever imagined. Amid a journey filled with hardships and betrayal, he uncovers an ancient legend that will not only change the way he sees the empire, but also force him to confront the truth about himself.