Ep. 4: Emma hears William Minerva's recording revealing his true identity and the underground refuge's purpose.
Aired on January 29, 2021

Emma listens to a message from William Minerva, who reveals his real name is James Ratri and that he established the underground complex to help escaped children find human society. The group decides to rescue remaining children on the Farms before relocating. After settling into their new life of gathering and hunting, armed humans sent by demons attack the shelter. The children flee through an unknown exit but are ambushed in the forest. A monster demon intervenes, allowing the children to escape after Ray shoots it in the eye. Meanwhile, Isabella is imprisoned for her role in the escape. A demon offers her freedom and greater power if she helps retrieve all the escaped children, and she accepts the deal.
Episodes
- Ep. 1 · Emma and the children flee the House toward Norman's location while facing a wild demon attack
- Ep. 2 · The second installment of the anime series narrative
- Ep. 3 · The third installment of the series
- Ep. 4 · Emma hears William Minerva's recording revealing his true identity and the underground refuge's purpose.
- Ep. 5 · The children hide in a temple while rumors of farm attacks spread among demons.
- Ep. 6 · Norman reveals his past at Lambda 7214 and his plan to use a degeneration drug against demons.
- Ep. 7 · Norman's Five-Day Delay and the Search for Mujika
- Ep. 8 · Norman's past at Lambda 7214 and the demon degeneration crisis in the present day