Season 1
13 episodes
26 min. per episode
Where to watch
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A determined girl and her robot confront dark mysteries and emotional truths while descending into an unforgiving abyss.
Episodes
While exploring the Abyss, Riko comes across something she has never seen before. How does this new discovery impact her?
Riko and Reg find out more about their past but the question still remains, who or what exactly is Reg?
Reg goes on his first cave raid. Meanwhile, Riko makes preparations to go into the abyss to find her mother.
Riko and Reg start their adventure into the Abyss, while there they run into an unexpected familiar face.
Riko and Reg descend into the Forest of Temptation. What new dangers will they find laying in wait for them there?
A girl and her robot companion search for her mother, who's lost within a vast chasm.