M3: The Dark Metal - S01

In a shadowy void called the Lightless Realm, a group of children form a deep bond before being torn apart and sent back to their own world. Years later, they reunite to battle monstrous creatures known as "Admonitions," which emerge from the same abyss, piloting giant robots called "Vess." Yet despite their struggles, the Lightless Realm continues to spread, slowly consuming their world. Everything changes when a new enemy appears-a "Corpse," said to carry a deadly song that kills anyone who hears it within nine days. When the group is exposed to the "Corpse Song," they begin to drift apart, each consumed by their own inner turmoil. As their unity fractures, the fate of humanity itself hangs in the balance.