Taking place in the year between the events of the first two games, the narrative centers on two manga-exclusive characters, Tyr and Mizuha, and the enigma of severed Gear parts raining from the sky. The antagonists are members of the Post War Administration Bureau (P.W.A.B.), a clandestine organization responsible for numerous events within the games. Characters from the games, including Sol, Ky, Axl, Potemkin, and Kliff, also make appearances, though in relatively minor roles.