Attack — On Titan Part 1

: The trio spends years in the 104th Training Corps , learning to use Omni-directional Mobility (ODM) gear —a system of wires and gas-powered grapples that allows humans to strike the Titans' only weak point: the nape of the neck. Major Story Beats

The "Part 1" narrative typically covers the first two major arcs of the series: 1. The Fall of Shiganshina Attack On Titan Part 1

The story opens with the initial breach of Wall Maria. This event forces humanity to retreat behind the second wall, Wall Rose, losing a third of their territory and roughly 20% of their population to the ensuing famine and failed reclamation missions. Attack on Titan, Part 1 - The Genre Fiend : The trio spends years in the 104th

: Fueled by rage and grief, Eren vows to "eradicate every last Titan" and joins the military with his childhood friends, Mikasa Ackerman and Armin Arlert . This event forces humanity to retreat behind the

For over a century, the remnants of humanity have lived within three concentric walls——which have kept the Titans at bay. This peace is shattered when a 60-meter Colossal Titan suddenly appears and kicks a hole in the outermost wall of the Shiganshina District .

: Protagonist Eren Yeager witnesses his mother being eaten by a Titan during the invasion.