Sion and Nezumi climb through the huge pile of bodies where they were dropped in and infiltrate the facility searching for Safu. Meanwhile, Rikiga and Inukashi leave the baby Sion saved to one of the dogs and gain entry into the facility by themselves to clear a path for Sion and Nezumi. Somehow, Sion knows exactly where to go and where all the cameras are, and this makes Nezumi a bit suspicious. He and Sion fight their way through the complex until Nezumi is wounded by a security guard. Sion kills him in retaliation much to Nezumi's grief. When the duo manage to get through Safu's location, they find that she broke herself free and the researchers around her are lying dead on the ground.
Nezumi e Shion si infiltrano nel Settore 1 e seguendo la voce di Safu, che ha in visione Eriulias, Shion conduce entrambi verso la sala dove è rinchiusa. Ma l'allarme di un'intrusione è stato dato e lungo il percorso si troveranno a dover affrontare difficoltà sempre maggiori, tanto che il ragazzo dovrà compiere l'irreparabile.
矯正施設への侵入に成功した紫苑とネズミ。そこは、それまで紫苑が想像だにしなかったNO.6の暗部であった。多くの人の屍を乗り越え、イヌカシと力河の協力の元、沙布を救うべく先へ突き進む二人。そんな中ネズミは、紫苑の言動が徐々に変わってきている事に戸惑いを覚えていた。
Shion et Nezumi évacuent avec le reste de la population et s'infiltrent dans un laboratoire à la recherche de Safu.
Shion y el ratón han invadido con éxito la instalación correccional. Esa era la parte oscura del número 6 que Shion nunca había imaginado. Con la cooperación de Inukashi y Rikikawa, los dos hombres corren sobre los cadáveres de muchas personas y proceden a salvar a Safu. Mientras tanto, la rata estaba confundida de que el comportamiento de Shion estaba cambiando gradualmente.
