Having been accepted into the Kaede Inn, Nana struggles to find some way to contribute, though she inadvertently brings more trouble than assistance. However, Nana's worries are directed more towards fellow resident Nyu, whom she had only known as Lucy, the violent Diclonius. Fearful that Nyu will unleash the same horrific savagery—violence that scars Nana to this day—upon those close to her, Nana faces a dilemma: attempt to live peacefully alongside Lucy with all the uncertainty that that entails or dispose of the source of her worries, shattering the relationships she has formed at the inn. As Nana struggles to come to a decision, Nyu recalls a painful memory of one of her dearest friends and one of her greatest rivals. [Written by MAL Rewrite]

Having escaped the many horrors of her village, Saya Kisaragi vows to hunt down the monster responsible and make him pay with his life. As she tears through flesh and bone for her vendetta, she encounters SIRRUT, a group of ingenious hackers, who enlist Saya to help them defeat a common enemy—someone she knows all too well. Unfortunately, the path she follows is paved with tragedy, as once again, Saya faces betrayal at the hands of those she has come to trust. With her back against the wall, the fearsome monster slayer must fight with all her strength and skill if she is to overcome this final mission and exact vengeance. [Written by MAL Rewrite]

Special episode included in the Blu-ray Box of Ano Natsu de Matteru.

Millennia ago, a war was fought between the Netherworld and the Spirit World. Ultimately, the Netherworld was destroyed and Lord Yakumo, the King of the Netherworld, was banished to the depths of space. Now, five defenders from the Spirit World must team-up against Yakumo's Demon-Gods for possession of five, mystical sites. But Lord Yakumo is dangerously close to reclaiming the Power Sphere—the source of the Netherworld's energy—and once it is again in his possession, our world will become the new Netherworld.