A Demon Crying in the Snow. Kennosuke, Yukina, as well as the close-knit students and the remaining staff who evacuated from the research facility, retreat to the high school, which has become the new base of operations. The entire region is completely isolated from the rest of the world because of the barrier created by Efi Dorg. When Kennosuke, Yukina and Muetta stop by Yakushi's home to visit Hiromi and Koharu, Zell appears and explains how he met and befriended Takehito many years ago, shortly before Takehito died from a sudden avalanche. Meanwhile, Efi Dorg manages to excavate the Pivot Stone from Kurobe Dam's underground excavation site, using the mind-controlled staff as slaves. The Pivot Stone draws in surrounding heat, icing the area and provoking a snowstorm over Kurobe Dam. Muetta, having finally accepted the fact that she is a replica with false memories, escapes from the base of operations. Yukina collapses in the snow while searching for Muetta. However, Muetta finds Yukina, taking refuge in a cabin. Before Kennosuke reaches them, Muetta reveals that Efi Dorg plans to use the Pivot Stone to create a wormhole between Earth and its homeland, enabling a correctional fleet to storm the planet and subjugate it.