Season 1
(2017)
Overview
Within the depths of the Abyss, a girl named Riko stumbles upon a robot who looks like a young boy. Riko and her new friend descend into uncharted territory to unlock its mysteries, but what lies in wait for them in the darkness?
Cast
as Riko (voice)
as Reg (voice)
Episodes
The City of the Great Pit 7.4
July 7, 2017
While exploring the Abyss, Riko comes across something she has never seen before. How does this new discovery impact he…
Resurrection Festival 7.5
July 14, 2017
Riko and Reg find out more about their past but the question still remains, who or what exactly is Reg?
Departure 6.6
July 21, 2017
Reg goes on his first cave raid! Meanwhile, Riko makes preparations to go into the abyss to find her mother.
The Edge of the Abyss 6.9
July 28, 2017
Riko and Reg start their adventure into the Abyss, while there they run into an unexpected familiar face.
Incinerator 7.3
August 4, 2017
Riko and Reg descend into the Forest of Temptation. What new dangers will they find laying in wait for them there?
Seeker Camp 5.9
August 11, 2017
Reg and Riko make it to the Seeker Camp where they meet Ozen the Immovable, the person who saved Riko all those years a…
The Unmovable Sovereign 7.4
August 18, 2017
Ozen reveals more about the Abyss as well as the truth behind Riko's origins. What will happen when Ozen shows her true…
Survival Training 6.9
August 25, 2017
Ozen tasks Riko and Reg to survive alone outside the Seeker Camp. Do they come out alive and unscathed? Or does the Aby…
The Great Fault 6.5
September 1, 2017
Reg and Riko continue their descent after they leave Ozen's Seeker Camp. Riko's mettle is tested as Reg passes out and …
Poison and the Curse 6.7
September 8, 2017
Reg and Riko run into trouble deep in the fourth layer where they meet an interesting creature, but are they friend or …
Nanachi 6.0
September 15, 2017
Nanachi sends Reg on a mission to find certain items that could possibly save Riko. Meanwhile, Nanachi reveals a little…
The True Nature of the Curse 6.7
September 22, 2017
Nanachi shows Reg the truth about the Abyss. Meanwhile, Riko is still recovering from her injuries when she has a stran…
The Challengers 7.4
September 29, 2017
Nanachi and Mitty's past is revealed. How did they become what they are and who is responsible for it? Meanwhile, Riko …