Deep Insanity: The Lost Child - Season 1 - Eps 1: take 01
A strange disease is linked to a mysterious hole that leads to an underground world: the Asylum. "Sleepers" come to this world to fight strange monsters and retrieve unknown resources. Now, a young man who dreams of being a hero has arrived at the Asylum.
About Deep Insanity: The Lost Child

Title: Deep Insanity: The Lost Child
First Air Date: 2021-10-13
Last Air Date: 2021-12-29
Status: Ended
Rating: 6.5/10 (from 8 votes)
Language: JA
Seasons: 1
Total Episodes: 12
Network: Tokyo MX
Genres: Animation, Sci-Fi & Fantasy, Action & Adventure
Production Companies: SILVER LINK.
Synopsis
Madness and unawakening sleep, Randolph syndrome. This new illness is slowly but steadily approaching humanity, caused by the huge underground world Asylum that appeared in Antarctica. There are strange creatures different from the earth, and unknown resources. People bet their lives on the depths of the mysterious new world to get huge wealth, organizational plots, or their own ambitions. And here alone, a young man with a wish in his heart is trying to challenge the front line of Asylum.
Cast

Hiro Shimono
Daniel Kai Shigure (voice)

Ami Koshimizu
Vera Rustamova (voice)

Kohsuke Toriumi
Leslie Blanc (voice)

Yuya Hirose
Lawrence Larry Jackson (voice)

Ruriko Noguchi
Reika Kobato (voice)

Kaede Hondo
Sumire Motiki (voice)

Takako Tanaka
EL-Cee (voice)