The soundtrack doesn't just accompany this show, it IS the show, each track engineered to crack you open at exactly the moment the narrative needs you broken. First seven episodes feel like filler until episode eight pulls the camera back and you realize every scattered moment was a puzzle piece, the whole thing rewarding obsessive rewatching in ways most anime won't even attempt. By the finale you're not watching a mecha story anymore, you're experiencing a love letter to the music that saved a generation, and it costs something to let it hit that hard.
The world lies in ruins, ravaged by the Earless, creatures that devour everything in their path. Only the Players stand against extinction, piloting colossal machines called Equipment in battles that broadcast to the masses below. Fame and wealth flow to the victors while the rest struggle to survive in sprawling junkyards. Echo lives among the scrap heaps, a tinkerer obsessed with mecha engineering. He's cobbled together his own machine from discarded parts, clinging to an impossible dream of joining the elite ranks of Players. That fantasy feels permanently out of reach until he stumbles upon Mu, a woman with no memories but bearing the unmistakable mark of a Player: a mechanical port running down her spine. The two form an unlikely partnership. Mu doesn't remember who she is or why she was abandoned, but her combat instincts are undeniable. Together they chase a dangerous path forward, commandeering Equipment and engaging the Earless in fierce clashes. What drives Mu? What secrets does her past hold? And can two outcasts really make a difference against an apocalypse?