Roar

Standing over its kill, the rogue Titan roars in triumph. Mikasa watches transfixed, baffled that one Titan would destroy another yet strangely lifted by the sight, which strikes her as human fury given flesh. Armin carries her to a rooftop where Connie panics until all three notice the creature's oddities: it strikes directly at the nape, ignores nearby humans entirely, and clearly knows how to fight hand to hand. With Mikasa's gas spent, Armin offers up his own tank and blades, keeping a single dulled sword so he will not be eaten alive. Mikasa presses the blade back into his hand and flatly refuses to leave him behind, and Connie sides with her. Dreading more deaths, Armin instead produces a plan and lets the other two decide whether to try it.

Elsewhere, Jean leads a band of trainees toward headquarters. Two soldiers on the ground are caught when their gas runs dry, and Jean seizes the grim opening their deaths create, sprinting the group through while the Titans feed. Snagged by the leg mid-flight, he severs the Titan's fingers and presses on. Inside the building he erupts at the supply team that abandoned the resupply mission, blaming their cowardice for his comrades' deaths, until Marco pulls him off. A Titan's head then bursts through the wall, proof the building is surrounded. Just as despair sets in, Mikasa, Connie, and Armin crash through a window, delivered by the rogue Titan, which is busy clearing the swarm outside. With Armin's gambit proven, the group weighs an outrageous proposition: their best hope of survival is a Titan that hunts Titans.

The rogue Titan reveals traits no one has documented before: deliberate strikes on the nape, indifference to human prey, and trained combat instincts. Armin's attempted self-sacrifice is shut down by Mikasa and Connie, cementing the trio's refusal to trade lives for gas.

Jean gets the stranded trainees to headquarters at the cost of the soldiers who fell along the way, and the survivors find the building overrun. The chapter closes with the group agreeing to exploit the rogue Titan as a weapon, the only plan left on the table.

This chapter includes a Currently Publicly Available Information page comparing body sizes, setting a soldier at 1.7 meters against Titan classes of 4 to 5, 7, and 15 meters, with the Colossus Titan estimated near 60 meters. Mikasa's read on the rogue Titan as embodied human rage foreshadows its true nature long before any reveal.

The events span the anime episodes Small Blade: The Struggle for Trost, Part 3 and I Can Hear His Heartbeat: The Struggle for Trost, Part 4. The chapter falls between Small Blade and The Beating of a Heart Can Be Heard in the Wall Sealing arc.