Ep. 12: Nanachi reveals the Abyss's secrets to Reg while Riko dreams during recovery
Aired on September 22, 2017

Nanachi reveals the true nature of the Abyss to Reg, providing him with critical information about the dangerous environment they inhabit. This disclosure serves as a pivotal moment for understanding the depths they are exploring. Simultaneously, Riko remains in a state of recovery from her previous injuries. During this period of rest, she experiences a vivid and unusual dream that adds to the mystery surrounding her journey. The narrative juxtaposes the educational revelation shared between Nanachi and Reg with Riko's internal struggle and subconscious experiences as she heals.
Episodes
- Ep. 8 · Riko and Regu face a solo survival challenge outside the Seeker Camp under Ouzen's orders.
- Ep. 9 · Regu and Riko descend from Ouzen's Seeker Camp as Riko faces survival challenges alone.
- Ep. 10 · Regu and Riko encounter a mysterious creature in the fourth layer
- Ep. 11 · Nanachi dispatches Regu to retrieve items that might save Riko while revealing personal details.
- Ep. 12 · Nanachi reveals the Abyss's secrets to Reg while Riko dreams during recovery
- Ep. 13 · The narrative reveals the origins of Nanachi and Mitty while Riko recovers from her injuries.