Als der Leiter der Forschungseinrichtung, Chisato Ichijiku mit dem Mädchen Mako Fujisaki, alias Walkürija in der Sternwarte auftaucht, überschlagen sich die Dinge.
Meeting Mako and Chisato who have arrived at the observatory are demanding to hand over #1107 who's in fact—Kotori. Ryōta distracts them for Hatsuna to jump on Mako from behind, but can't figure out which button to push on Mako's harness having her to slice Hatsuna. Wanting an explanation why they have to be killed, Chisato states the B-rank witches are unreasonable to live. He orders Mako to kill Neko, but Ryōta push her away and takes the hit from Mako's magic. Losing consciousness, Nanami appears in astral form to Ryōta informing that Neko used to be an S-rank witch stronger than Mako, the way to regain her power is by pressing the top button of her harness but it's a high risk; then Ryōta dies. With the girls distressed and defenseless, Mako about to finish them off, but then a group of black individuals arrive who have neutralized Mako's magic. Following the device's signal that Ryōta turned on earlier. Yet, Chisato escapes using Mako's teleportation taking Kotori along. Hatsuna had recovered and using her ability to heal; with Neko and Kazumi giving heart aid, they revive Ryōta. Hatsuna melts in the process however. Miki and the individuals introduce themselves as Hexenjagd, a group resisting the lab, stating the witches still has to die because the amoebas "drasils" inside them - the witches' true form - will eventually hatch and devour their bodies into monsters. Moreover, Kotori has an entity called the "Grane" that can destroy all humanity. They tried to capture Kotori once, but failed, causing the witches' escape and losing a comrade (Akane). Kotori awakens before Chisato, calling her Rena. Rena was Chisato's younger sister whom believed was the only life meaningful to him until she died of sickness. He tells Kotori how aliens were believed to be the creation of humans on Earth. His efforts to revive Rena's soul within Kotori's body somehow. Not giving up, despite the revelation, Kazumi hacks in the lab's database locating Chisato's whereabouts ne
Neko et les autres se retrouvent nez à nez avec Valkyria et Ichijiku bien décidés à les tuer pour récupérer Kotori. Mais Ryôta utilise l'appareil constituant leur dernière piste pour que l'organisation nommée "la chasse aux sorcières" puisse les localiser...
ついに九とヴァルキュリアが天文台に現れた。奇策を使いヴァルキュリアをハングアップさせようとする村上と初菜。そこに寧子も参戦するが力を使いすぎて逆にハングアップしてしまう。絶望的な状況の中、九の指示でヴァルキュリアは寧子にトドメの一撃を放つのだが…！？
Mako y Chisato llegan al observatorio donde exigen entregar al # 1107 quién es, de hecho, Kotori. Ryōta los distrae para que Hatsuna salte a Mako por detrás, pero no puede averiguar qué botón presionar sobre el arnés complejo de Mako para colgarla. Mako toma represalias cortando a Hatsuna por la mitad. Queriendo una explicación de por qué tienen que matarlos, Chisato afirma que las brujas de rango B son irrelevantes.
