Within the prestigious Barsburg Empire's Military Academy, students harness the mystical power of 'Zaiphon' to secure triumph for their nation. Among them is Teito Klein, a standout cadet haunted by his slave origins and a shrouded past. Supported by his friend Mikage, Teito stumbles upon a sinister truth tied to his history just before a botched assassination plot against Ayanami, the official responsible for his father's demise, lands him in dire straits. Rescued by Mikage, Teito finds sanctuary at the 7th District Church, where he initiates a daring quest to elude Ayanami's clutches and the military's pursuit. His ultimate goal: unravel the enigma of his identity, reclaim his lost memories, and grasp the pivotal role he plays in shaping the world's destiny.