With Ryoma overwhelmed during a fire rescue and the team planning to disband and move to France, Ryoma becomes increasingly concerned about the unidentifiable health conditions he is experiencing. When Commander Masaki investigates, he discovers a shocking truth: an enemy from Winspector's past, bent on revenge. As Commander Masaki plans for Winspector's replacement, he is forced to make a critical decision, the darkest and most difficult of his career. The stakes have never been higher as Tokyo is plunged into chaos.