Back in Orth, Kiyui has sudden fallen ill on his birthday, following a mysterious trend called the "Birthday Death Disease" which has begun to plague the town. Jirou takes him to a caravan fleet offshore for medical treatment when Kiyui's symptoms suddenly disappear, and a doctor muses that it may have something to do with the Curse of the Abyss. Back in the Abyss, Nanachi assures Reg that Mitty will not harm Riko, and she apparently has taken a liking to her. Reg then convinces Nanachi to teach him about the true nature of the Curse. Nanachi reveals the Curse is all around them in the air, and moves along with them. Many of the Abyss monsters such as the orb piercer can predict the future because they can see the Curse and predict their prey's actions based on it. Nanachi sends Reg out to train, and he comes across another cave raider being attacked by the orb piercer. Reg intervenes and thanks to Nanachi's directions, is able to chase off the orb piercer with his Incinerator. After leaving a message with the cave raider to tell Jirou that he and Riko are okay, Reg reunites with Nanachi, who requests that Reg kill Mitty for them.