Maru and Kiruko discover that Dr. Usami had a button with the same pattern as the logo they found on the Kiru-Beam. They decide to follow it's trail, and meet a mysterious informant along the way. Meanwhile, back at the nursery, an emergency meeting is held.

Maru and Kiruko decide to head to the Ibaraki facility of the Takahara Academy. Since it's on the way, they agree to help Juichi confirm whether his baby is still alive. Arriving at the Walled Town, the situation is very different to what was expected.