Fantastic World (Volume 1-2 is the latest issue)

Publisher: Riid
Author: Ryo Hirano
size:
Number of books: 2
Language: Japanese
Category: Youth manga, manga
Latest release date: 2018-09-14

Synopsis:
There was another civilization inside the earth.
"The Smoky God, or, a Voyage to the Inner World" published in 1908 An unknown and beautiful landscape between people and outside people, which boldly incorporate the Earth cavity theory.
The history of the internal world "Shambara", the only human being, Biko, and his friend, his teeth, is revealed.
Invasion wars, ethnic conflicts, discrimination and religious friction ... The event that linked to the global outer skin was happening inside the earth!?