After sharing a heartbreaking loss, the weary Nanachi allies with Riko and Reg as they venture deeper into the Abyss. The abyss is a labyrinth of forgotten memories. The children confront the Sea of Corpses—the fifth stratum of the Abyss, the deepest zone from which a traveler can escape without forfeiting their humanity.
A masked tormentor, Bondrewd, blocks the party"s progress. His grotesque laboratory acts as a final hurdle for those who wish to delve further, and the sociopathic scientist refuses to let Riko"s companions pass without a price. It demands sacrifices beyond mere coins. Scars from Bondrewd"s influence on their youth leave Nanachi in turmoil as his return threatens their fragile peace. Their trust, once shattered, now trembles.
Bondrewd"s sole vulnerability is Prushka, a headstrong child who insists she is his daughter. Riko, Reg, and Nanachi ally with Prushka, collaborating to thwart her father"s schemes and breach the Abyss"s sixth layer.
