You wake up as a weapon with a dragon-eating name and no memory of how to be human. The entire OVA is you fighting to remember yourself while everything around you screams that you should stay forgotten. It's sci-fi noir trapped in a fantasy body, built on the premise that some people are too dangerous to know their own names.
Agarta regains consciousness in a ghost town stripped of all life and meaning. The streets are empty, the signs are unintelligible, and her memories have been scrubbed clean. Only the strange markings etched into her skin remain, a cryptic reminder that she is something called a dragon devourer, though the significance escapes her. She doesn't know who she is, why she's here, or what she's supposed to do. The town itself feels wrong, suffocating under a weight of silence that suggests something far worse than mere abandonment. As Agarta moves deeper into the desolate landscape, she begins to uncover fragments of her purpose. Monsters lurk in the shadows, drawn to her presence. Combat instincts kick in, and with each confrontation, pieces of her identity surface like debris from a sunken ship. The battle to reclaim her memory becomes inseparable from the fight for survival. This story rewards viewers drawn to atmospheric science fiction where isolation breeds dread and action scenes carry real consequences.