The anime adaptation is going by the name Deep Insanity: The Lost Child and is set between the manga and the game.
The official site recently set an October 12th, 2021 premiere date and now they’re doing some new promotion with a TV spot that’s arrived just ahead of its premiere.
The Deep Insanity game from Square Enix is getting an anime and manga project as well.
The anime adaptation is directed by Shin Oonuma based on the series composition by Kento Shimoyama.