Kabaneri of the Iron Fortress (2016)

S1E1 Frightened Corpse

At Aragane Station, the terrifying Kabane swarm descends upon the terrified populace. Ikoma, a young steamsmith residing in the station, boldly pushes through the panicked crowd. Determined to confront the Kabane, he prepares to unveil his secret invention—the Piercing gun. Driven by a desire to reclaim his honor and confront his haunting past, Ikoma gears up for a fierce battle against the monstrous threat.