Storyline

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.

First Aired

2021-10-13
Last Aired

2021-12-29
Creator
Genre

Animation, Sci-Fi & Fantasy, Action & Adventure
Seasons

1
Episodes

12
Status

Ended
Language

日本語
Network

Tokyo MX

Keywords:

supernatural creature anime rare disease

Stream and watch Deep Insanity: The Lost Child

Season 1

1. take 01

A strange disease is linked to a mysterious hole that leads to an underground world: the Asylum. "Slee...More

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.Less

24mins 2021-10-13

2. take 02

As Shigure begins to settle into his new life as a Sleeper, he begins to wonder what he is good at and...More

As Shigure begins to settle into his new life as a Sleeper, he begins to wonder what he is good at and what he can accomplish at the Asylum.Less

24mins 2021-10-20

3. take 03

Larry goes on a dangerous and illegal mission deep in the Asylum and forces Shigure to go with him.

Larry goes on a dangerous and illegal mission deep in the Asylum and forces Shigure to go with him.Less

24mins 2021-10-27

4. take 04

Shigure delves into XO Leslie's past when a mysterious assailant suddenly ambushes him.

Shigure delves into XO Leslie's past when a mysterious assailant suddenly ambushes him.Less

24mins 2021-11-03

5. take 05

Shigure is always embarrassed around Kobato and the rest of the team thinks he might have a crush on h...More

Shigure is always embarrassed around Kobato and the rest of the team thinks he might have a crush on her. They hatch a plan to bring them together, but...Less