Streaming: Funimation
Episodes: 12
Source: Multimedia Project
Episode Summary: A mysterious ailment called “Randolph Syndrome” has started to affect the people of Earth. The suspected source is thought to be a recently-uncovered underground world in Antarctica, named the “Asylum,” populated by strange, mutated creatures and immense stores of natural resources. The brave souls who choose to explore this wilderness are there both to find a way to exploit these resources and the genetic material of the mutants, but also to find a cure for Randolph Syndrome.
Lured by a recruiting commercial and his desire to be a hero, Shigure joins the few, the proud (and the short-lived) “Sleepers” who explore this underground world. It’s not long before he’s sent, mostly unprepared, on his first mission. As his party encounters some of the horrors to be found below, he learns quickly that survival is the rule above all, and that accepting fear of death is the only way to survive.