Square Enix Announces Cross-Media Project Deep Insanity with game, anime, and manga

Square Enix has announced a cross-media project known as “Deep insanity”. This project will include a game for PC and mobile, anime, and manga.


The Deep Insanity: The Lost Child(anime), Deep Insanity: Asylum(game), and Deep Insanity: Nirvana(manga) will all share the same universe but will exist in different timelines.
At first, it was just news that happened somewhere in the world.
Some people fell asleep and never woke up again.
And apparently, the symptoms are contagious.
However, the mundane news quickly spread throughout the globe as an “Abnormal Situation.”
It was known as the “Randolph Syndrome”.
At the same time, witnesses of “Abnormality” (異形) are reported one after another in the world.
It seems that they come from the huge underground world found in Antarctica.
What was discovered inside was a group of organisms that differ from the ground and unknown resources.
In order to cure those with Randolph’s Syndrome, and also to obtain huge wealth from the genetic information and underground resources, people take on an adventure to the abyss.

Deep Insanity: Lost Child(Anime)


This anime will start airing in October 2021. It will focus on Kai, a young boy who went into the cold abyss for a reason unknown. Hiro Shimono will play the character of Shigure Daniel Kai, the anime’s protagonist.


Staff and Production
  • Director: Shin Oonuma
  • Series Composition & Script: Kento Shimoyama
  • Character Design: Kazuyuki Yamayoshi
  • Sound Director: Fumiyuki Go
  • Music: Mirai Kodai Gakudan
  • Animation: SILVER LINK.
  • Produce Cooperation: KADOKAWA
  • Original Work, Produce: SQUARE ENIX

Deep Insanity: Asylum(Game)


This game is a RPG that will launch in September in Japan on PC via Steam, iOS, and Android. It will be a free-to-play game with item-based in-app purchases. Battles will be skill selection-based battles that progresses in real-time. There will also be auto and high-speed functions. The game’s theme song “Madoromi” is composed , written, and arranged by Taketeru Sunamori of Mirai Kodai Gakudan. Hololive Vtuber Amane Kanata and Tokoyomi Towa lend their voice for the theme song. You can now pre-register for this game in Google Play. Aside from that, the game will host a beta test for Android users this coming July 2, interested players will have to download the Square Enix app to participate in the test.

Near future.
The never-ending sleep known as Randolph Syndrome has spread across the globe.
The cause appears to be a huge underground world that appeared in Antarctica.
Discovered inside was a group of strange organisms unlike those on the surface, as well as unknown resources.
To put an end to Randolph Syndrome, and to attain great wealth from the genetic information of those organisms and underground resources, humans put their lives on the line and go underground.

Deep Insanity: Nirvana(Manga)


This manga has already begun its serialization in the current issue of Square Enix’ Monthly Big Gangan magazine. On September 25, Square Enix will release Deep Insanity: Nirvana’s standalone comic volumes 1 and 2.


The manga is set in the same universe when countries joined hands to send an investigation team to search for the Randolph Syndrome, however none of the sent investigation team returned safely. Serge Sol, a boy that has special resistance from the sickness and Hildegard Oluinpiada Yamada, a “Yorozuya” in Antarctica, unintentionally entered the asylum.