What kind of title is this?: Manga.
Where can I read it?: Reading links are listed for Official Site, K MANGA. Check availability in your region.

Synopsis

About Heavenly Delusion

Within the safety of the walls, youths are raised in a nursery-style setting by robots. While life there may appear stale on the surface, the children are full of potential and curiosity. In many ways it is like a slice of heaven. The outside world is a hell-scape. It is almost entirely void of anything mechanical and is now inhabited by bizarre, yet powerful super-natural beings. Maru, with the aid of Kiruko, is out there crisscrossing what was once Tokyo for heaven. But after searching for so long, maybe heaven is more of an untenable dream than a potential reality. (Source: DENPA) Note: Winner of Kono Manga ga Sugoi! 2019 Award in Male Readers category.

Adventure Drama Mystery