Rikiga leads a client of his to a young girl, whom he has solicited to the client. The girl is really Inukashi in disguise, as this was a part of a plan devised by Shion, Nezumi, Inukashi and Rikiga. Inukashi, unable to deal with the man's advances, disrupts the facade in outrage. Nezumi and Rikiga bind and gag the man in order to get information from him, while Shion consoles Inukashi. The information they receive entails a map of the correctional facility in No. 6, as well as word of a "pre-Holy Day cleaning operation". Back at their underground hideout, Shion discusses potential plans of their living conditions when the summer comes, idealizing that his mother and Safu live here together with him and Nezumi. Meanwhile, Karan walks through a festive No. 6, as the inhabitants are preparing for the Holy Day. Back in the outskirts of the city, Shion asks Nezumi if he sent a message to his mother because he had finally come up with a plan. Suddenly, the town is attacked by No.6 military tanks, which Shion discovers were part of the "cleaning operation" he had asked Nezumi about earlier. The two flee to seek shelter from the raid, and in an alley, Shion finds an infant whose mother was killed by the blasts. He sends their guard dog off with the baby to Inukashi. The army then rounds up all the town's survivors, telling them they will be taken to the correctional facility--which had been Nezumi's plan all along. Meanwhile, Karan frets about Shion's safety, but Yoming assures her that Shion is fighting back and not to worry. He also informs her that the Twilight House was established to kill off all unneeded people of the city's elderly population, and that he will be sending out a message to his comrades to fight back against No. 6. Karan then receives a message from one of Nezumi's rats, telling her that she will be reunited with Shion. In the transport trucks, Nezumi sings an old song to raise the hopes of the captured townsfolk, but tells Shion that a song will never
Nezumi riesce a venire in possesso di informazioni riservate grazie alle quali progetta di introdursi nel No.6, all'interno del settore in cui Safu è rinchiusa. Così nel Giorno Sacro lui e Shion si lasciano catturare da squadre appositamente mandate a rastrellare i sobborghi della città.
力河の協力で、NO.6の高官より矯正施設の内情を聞きだす事に成功した紫苑とネズミは、施設への侵入が思いのほか困難であること、そして来るべき“聖なる祝日”を前にNO.6が“清掃作業”と称して何かを行おうとしている事実を知る。その“聖なる祝日”の前日、紫苑とネズミは訪れた西ブロックの市場でNO.6の軍と遭遇。大規模な虐殺と拉致の嵐に巻き込まれでしまう。
Shion, Nezumi, Inukashi et Rikiga essaie de prendre un client de Rikiga au piège afin de lui soutirer des informations sur les projets de No. 6.
Con la cooperación de Rikikawa, Shion y Mouse, que lograron obtener la información interna de la instalación correccional de los altos funcionarios del Núm. 6, son incómodamente difíciles de invadir la instalación y en previsión de la próxima "fiesta sagrada".
