Marching Out The Zombies continues the gripping narrative of the ongoing war between the Soul Reapers and the Quincy forces. In the aftermath of the Wandenreich's devastating assault on Seireitei, the Soul Reapers regroup and strategize their counterattack against the Quincy invaders. Ichigo faces off against Sternritter "Z," who possesses the ability "The Zombie," which allows him to reanimate the dead as his soldiers. Yhwach's motives and plans come to light as the war progresses, adding layers of curiosity and suspense to the conflict at hand.