Episode Title:
Things to Protect.
Episode Description:
The light covers the Earth with Hexenjagd just staying helpless, so Ryōta, Neko, and Kazumi go to rescue Kotori on their own. Neko and Kazumi knock Ryōta out - not wanting him to risk his life any longer. Chisato remarks Takachiho's aim is to use "Ain Soph Aur" to reset the Earth to a whole new era. Though his only intention is to revive Rena, Kotori responds to Chisato how she wants others to smile regardless of her life so she ejects her own harness, therefore canceling the light phenomenon. Mako slices Kazumi in half but spares Neko as she is her little sister. As Nanami guides Ryōta, he finds Kotori's melting body. Listening to her final words, she asks Ryōta to tell her big brother not to harm anyone, and that she was happy till the very end. He also hears over Kazumi, as she mutters of wishing to have kids with Ryōta. Mako recalls how Chisato saved her once when exposing himself to radiation. Chisato commands to have Neko ejected when Ryōta hits him aside, shouting out Kotori/Rena's words at him. Mako uses gravity manipulation on Ryōta and Neko. Then Kana quickly intervenes, who is now able to move when having her top button pressed for the cost of her forecast magic. Neko then presses her top button as well. Her full power is now awakened and her memory as Kuroneko - Ryōta's childhood friend - is restored. Neko forms a barrier to counter Mako. Hexenjagd neutralizes Mako's magic and then fire at her with their guns, but Chisato shields her from the bullets. With Chisato dead, Mako now believes the world is meaningless and attempts to unleash her antimatter magic. Neko kisses Ryōta, before using a micro black hole on Mako, which swallows her up for good. Ryōta grabs Neko from falling off a collapsing cliff. Neko seems to have overexerted herself and unfortunately loses all her memories again. Kogorō later calls, that they have miraculously obtained the formula needed reproducing the pills for the witches. In the credits, they return to school, with Kotori's tombstone beside Chie's near the cottage they lived in. Kogorō, Hexenjagd, and the lab continuing their research on aliens. The astronomy club begins a fresh start on an astronomical observation with Kazumi restored thanks to Hatsuna. Ryōta lets Neko see the Summer Triangle in the sky through the telescope.
