Animation
Drama
Action & Adventure
Sci-Fi & Fantasy
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.
Top-rated
Fri,
29 Sep, 2017
S1.E13The Challengers
Nanachi and Mitty's past is revealed. How did they become what they are and who is responsible for it? Meanwhile, Riko is on the mend after her injuries.
Top-rated
Fri,
07 Jul, 2017
S1.E1The City of the Great Pit
While exploring the Abyss, Riko comes across something she has never seen before. How does this new discovery impact her?
Miyu Tomita
Riko (voice)
Mariya Ise
Reg (voice)
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