Located in the center of a remote island, the Abyss is the last unexplored region, a huge and treacherous fathomless hole inhabited by strange creatures where only the bravest adventurers descend in search of ancient relics. In the upper levels of the Abyss, Riko, a girl who dreams of becoming an explorer, stumbles upon a mysterious little boy.
Specials
5 episodes · Jan 2020
Season 1
13 episodes · Jul 2017
The Golden City of the Scorching Sun
12 episodes · Jul 2022
