Inukashi and Rikiga are waiting for Nezumi and Sion to hurry up and meet back up with them, while at the same time, Sion and Nezumi are just now encountering Safu. The fireworks celebration is commencing at No. 6 to celebrate the Holy Day, but for some reason, Lili still feels like something dangerous is about to happen, and Karan can only wonder about what's coming next. Yoming is setting up his plans with his other friends, waiting for a perfect time to act. Suddenly, the parasites become active and people start dying very rapidly. The parasite bees are everywhere, millions of them. Back at the facility, one of the dead researchers on the floor gets a phone call, and it plays the frantic message of another researcher saying that their plans had gotten out of hand. Nezumi asks Safu if she was truly the one who led them there, and when she responds saying that she wanted to see them, Nezumi says that she has "Mother's" voice. Mother is the main computer behind Safu, which controls the entire correctional facility. Safu says that Mother was held in the Moon Drop until four years before when the authorities captured Nezumi and took him to the Moon Drop. She says that the researchers had planned to use Mother to analyze Nezumi so they could learn Elyurias' power and use it to revive the land they had destroyed. She tells them that the researchers had used the information they had received from the legless man to experiment Elyurias' power on the citizens of No. 6, thus the parasite bees. At this time, Yoming starts to broadcast to the city, though many people are already dead. Sion doesn't understand Safu, so Nezumi tells him that Safu is really Elyurias. Safu admits to it, and tells Sion that she loves him. As Sion starts to lose control of himself, Safu tells Nezumi to destroy Mother. After having to fight back against Sion, Nezumi puts an explosive on Mother and the two escape, leaving Safu behind to die. Sion is hysterical, but Nezumi tells him that she's not Safu
数々の苦難を乗り越え、ついに沙布の元へ辿り着いた紫苑とネズミ。だが、既に沙布がエリウリアスと一体化させられていることを知り、紫苑はついにNO.6への怒りを爆発させてしまう。その頃NO.6市内では、「聖なる祝日」を祝う式典の最中、例の寄生バチが大量に発生し人々を襲っていた。果たしてNO.6存亡の行方は、そして紫苑とネズミたちの運命の行きつく先は？
Inukashi et Rikiga attendent que Nezumi et Shion les rejoingnent, tandis que Shion et Nezumi viennent de rencontrer Safu. Pendant ce temps, la célébration des feux d'artifice est sur le point de commencer.
Después de superar muchas dificultades, Shion y el ratón finalmente llegaron a Sabu. Sin embargo, sabiendo que Safu ya se ha integrado con Eliurius, Shion finalmente explota su ira hacia el No.6. En ese momento, en la ciudad de NO.6, durante la ceremonia para celebrar la "fiesta sagrada", una gran cantidad de avispas parasitoides golpearon a la gente.
