Back in Orth, Kiyui falls ill on his birthday, following a mysterious trend called the "Birthday Death Disease" which has begun to plague the town.

Back in Orth, Kiyui falls ill on his birthday, following a mysterious trend called the "Birthday Death Disease" which has begun to plague the town.

Riko and Reg are allowed inside the Seeker Camp, where they finally meet Ozen as well as her apprentice, Marulk.

Riko and Reg begin climbing down the Great Fault, using a network of caves to avoid the flying predators that inhabit the layer.

As Riko and Reg proceed through the second layer, they encounter a corpse weeper, a large carnivorous bird that can mimic the cries of help from its prey.

Riko and Reg begin climbing down the Great Fault, using a network of caves to avoid the flying predators that inhabit the layer.

Riko and Reg manage to descend deep down into the first layer of the Abyss. Reg then remembers that Jiruo slipped a letter into his backpack and reads it.

Despite some setbacks, Riko and Reg successfully complete their survival training and return to the camp.

Upon reading the note, Riko decides to descend into the Abyss to find Lyza.

Despite some setbacks, Riko and Reg successfully complete their survival training and return to the camp.

Riko and her friends attempt to figure out exactly what Reg is, but cannot find anything mentioning a robot in the list of recorded relics recovered from the Abyss.

Ozen reveals that the Curse Warding Box has the power to temporarily revive the dead and the monster Riko saw was a lump of meat she had placed in there, returning to life.

While delving into the upper layers of the Abyss to search for relics, Riko and her partner Nat become separated.

Upon reading the note, Riko decides to descend into the Abyss to find Lyza.

When Reg recovers from using his Incinerator, Nanachi tells him the story of when several children, including Mitty, were duped by the white whistle Bondrewd.

The World Cup Group League commences and Japan battles it out with Greece and Australia.