Scavenger boy Wrench scraped by with his father and brother, enduring endless cruelty, yet his resolve to become a Spirit Machinist never wavered. But when a sudden plunge into the abyss changed his fate, driving him to the absolute brink, he encountered the avatar of the Heavenly Spirit, the Vermilion Bird. As the lingering echoes of heroic spirits within him awakened a mysterious Spirit-Mech, Wrench was plunged straight into a deadly scramble for the machines—and the dark conspiracy of Starfall. But he didn't back down. Just like the pioneer Spirit Machinists who bled to protect the Profound Realm a decade ago, he took the helm of his Spirit-Mech and carved a path from Rustport straight into the invaders' breach, the "Starfall Rift." And so, his journey began...