Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
A distant future where the land was devastated by the Last War.
Air pollution has reduced the life span of mankind by more than half.
A boy who lives in a slum, Sudo meets a mysterious fugitive, Athalva, who tells the story of a girl.
The girl who lives 3000 years with management AI in the giant underground shelter "NeoSphere" left by the ancient people has a certain power of taboo in her body.
Knowing this, Sudo heads with Athalva to the underground NeoSphere.