Deep Insanity THE LOST CHILD
🚪 Often abandoned
A mysterious illness has put millions in comas. An underground realm has appeared at its origin: Antarctica. Strange creatures make up its population, and undiscovered natural resources make it a gold mine. Many humans enter in search of fortune, but Daniel Kai Shigure searches for something deeper—a cure. Gifted with immunity to the illness, he might be humanity’s last hope. (Source: Funimation)
Names
| Original | Deep Insanity THE LOST CHILD (latin) |
|---|---|
| Romaji | Deep Insanity: THE LOST CHILD |
| English | Deep Insanity THE LOST CHILD |
| Chinese | 狂热深渊-迷失的孩子 (simplified · via bangumi) |
| Also known as | ディープインサニティ ザ・ロストチャイルド |
Facts
| Format | TV series · 12 ep · 24 min · 5h total |
|---|---|
| Aired | 2021-10-13 → 2021-12-29 (Autumn 2021) |
| Status | FINISHED |
| Studio | SILVER LINK. |
| Source | Multimedia project |
| Origin | Japan (Anime) |
| Genres | ActionAdventureSci-Fi |
| Themes | Male ProtagonistDisability |
| Streaming | YouTube · Crunchyroll |
Reception
| Community score | 5.11 / 10 |
|---|---|
| Bayesian score | 5.84 / 10 |
| Composite | 28.6 |
| On lists | 15,665 |
| Favourited | 113 (0.7%) |
| Completion | 44.5% |
| Drop rate | 32.9% |
| In backlog | 41.7% |
| Score spread σ | 2.17 |
Score distribution
1229223933564536567366347445822691571089
Where it places
| Cohort | Value | Tier | Rank |
|---|---|---|---|
| Broadcast season | Autumn 2021 | E | 80 of 82 |
| Source material | Multimedia project | E | 105 of 106 |
| Studio | SILVER LINK. | E | 118 of 119 |
| Year | 2021 | E | 352 of 356 |
| Genre | Sci-Fi | E | 1,397 of 1,409 |
| Genre | Adventure | E | 1,524 of 1,534 |
| Era | Early 2020s | E | 1,581 of 1,596 |
| Season (all years) | Autumn | E | 1,901 of 1,921 |
| Length | Single-cour | E | 2,634 of 2,668 |
| Genre | Action | E | 2,729 of 2,765 |
| Format | TV series | E | 3,291 of 3,322 |
| Origin | Japan | E | 7,069 of 7,157 |
Key staff
| Director | Shin Oonuma, Fumiyuki Gou |
|---|---|
| Series composition | Kento Shimoyama |
| Character design | Kazuyuki Yamayoshi |
AniList id 136947 · MAL id 49292 · Bangumi 339969 · record updated 2026-08-27