Deep Insanity: Nirvana

A six-issue manga series from Crunchyroll, Deep Insanity: Nirvana (2023–2024) is a sci-fi thriller set in a near-future world ravaged by a mysterious sleeping sickness called "Randolph Syndrome." The story follows a team of explorers who descend into a colossal, alien underground labyrinth known as "Asylum," which holds the key to the disease's cure. Written and illustrated by Norimitsu Kaihō and illustrated by Kōsuke Kurose, the series expands the Deep Insanity multimedia franchise, offering a tightly focused, claustrophobic survival horror experience. Its concise run delivers a complete, high-stakes narrative about the cost of hope in a collapsing world.