Ryouta und die vier Mädchen wollen Nanami aus den Fängen der Forschungseinrichtung befreien. Doch ihr skrupelloser Auftraggeber ist schneller und zerstört Nanami per Remotebefehl.
Taking Nanami to the observatory, Kogorō, who is there, asks him to find a way to remove the beacon on Nanami's harness. As Neko talks about how important friends are and painful it is to lose them. Before Kogorō can do anything, the beacon activates and Nanami melts to her death. She erased their memories of her, except Ryōta and Kogorō, to relief grieve. Ryōta cries then, Nanami appears beside him saying that she inserted her consciousness within his memory. Sometime later, studying for test finals next week, the club members decide whether continue going to school or not since they only have three weeks' worth of pills left. Ryōta reminds them how they wanted to live as high school students. He motivates them for a trip to the beach. In the evening, listening to Neko singing he comforts her. He notice Neko doesn't remember the time she went to karaoke with friends. Fearing that she will forget about him, Ryōta embraces her. After the finals, seeing the test scores: Neko 1st, Ryōta 2nd, and Kazumi 3rd. They then head for the beach as promise. Thinking of what they been through so far are happy with their lives for now. Elsewhere, Chisato took the initiative to release a Valkyria: an S-rank witch. In order to detect #1107, he has team of A-rank witches to monitor her but underestimate her, who had already killed them.
Ryôta, Neko tentent d'aider Nanami en la sauvant des griffes du Centre. Mais pour cela, ils doivent trouver un moyen de retirer sa balise. Kogorô vient leur prêter main forte...
期末テストが迫っていたが、カズミは残り短い命なのだから勉強する意味がないとやる気がない。そんな彼女たちに学業の大切さを説く村上に対して、小鳥はテストで頑張ったら何かご褒美があるならやる気が出ると提案する。そこで村上はテストで平均点以上をとれれば海に連れていく約束をするのだが…。
Llevando a Nanami al observatorio, Kogorō, que está allí, le pide que encuentre una manera de quitar el faro del arnés de Nanami. Neko luego habla sobre lo importantes que son los amigos y lo doloroso que es perderlos. Pero antes de que Kogorō pueda hacer algo, la baliza se activa y Nanami se derrite hasta la muerte.
