Abyss: Spinoff

大穴の街

While exploring the Abyss, Riko comes across something she has never seen before. How does this new discovery impact her?

復活祭

Riko and Reg find out more about their past but the question still remains, who or what exactly is Reg?

出発

Reg goes on his first cave raid! Meanwhile, Riko makes preparations to go into the abyss to find her mother.

アビスの淵

Riko and Reg start their adventure into the Abyss, while there they run into an unexpected familiar face.

火葬砲

Riko and Reg descend into the Forest of Temptation. What new dangers will they find laying in wait for them there?

監視基地〈シーカーキャンプ〉

Reg and Riko make it to the Seeker Camp where they meet Ozen the Immovable, the person who saved Riko all those years ago. But there is more to Ozen than meets the eye.

不動卿

Ozen reveals more about the Abyss as well as the truth behind Riko's origins. What will happen when Ozen shows her true colors?

生存訓練

Ozen tasks Riko and Reg to survive alone outside the Seeker Camp. Do they come out alive and unscathed? Or does the Abyss have a dirty trick up its sleeve?

大断層

Reg and Riko continue their descent after they leave Ozen's Seeker Camp. Riko's mettle is tested as Reg passes out and she has to fend for herself.

毒と呪い

Reg and Riko run into trouble deep in the fourth layer where they meet an interesting creature, but is she friend of foe?

ナナチ

Nanachi sends Reg on a mission to find certain items that could possibly save Riko. Meanwhile, Nanachi reveals a little more about themself.

呪いの正体

Nanachi shows Reg the truth about the Abyss. Meanwhile, Riko is still recovering from her injuries when she has a strange dream.

挑む者たち

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.