進撃の巨人 悔いなき選択

Levi Ackerman survives as a thug in the Underground City beneath the capital, relying on stolen ODM gear to stay ahead of rival gangs alongside his two closest companions, Isabel Magnolia and Farlan Church. When Survey Corps commander Erwin Smith tracks them down and forces all three into military service, Levi accepts, but not without a secret contract from a nobleman who wants Erwin dead. This two-part OVA prequel to Attack on Titan covers Levi's first expedition beyond the Walls and the choice that binds him to the Corps.