Sugimoto Saichi, called "Immortal Saichi" for his incredible powers of survival, is panning for gold in the far north when he hears a story about buried treasure, hidden by a death row inmate. He decides to go after the treasure, but it will be a journey far longer and far more dangerous than he'd ever imagined…
Season: 1
Clash!
Taken by the Raiders to an unknown setting, the Cleaners fight for their lives, and Zodyl makes Rudo an offer.
The Storm Before the Storm
After returning from the Penta No Man's Land, Rudo and the Cleaners face a series of new threats.
Starting Point
Yuri, who has lost their memory, wakes up aboard the Interstellar Cruiser D.Q.O. They are taken by Setsu to participate in a meeting to identify the "Gnosia," a being that attacks and annihilates humans.