Die Schlacht gegen Aldebaran beginnt und Rentaro bekommt Unterstützung von der Kaiserin und den Einwohnern Tokyos.
With no news of the batteries to power up the lights, Rentaro and his forces are about to confront the advancing Gastrea in the dark when thousands of lanterns appear to illuminate the sky for them. Setienshi contacts Rentaro who soon realizes that it was her idea to hold a festival in the occasion and he orders the attack to begin. Rentaro and Enju's companions tear by the enemy formation to open a path for them to Aldebaran and the duo succeeds to implant the bomb inside its body, but it fails to detonate. Realizing that it needs a strong impact to make the bomb explode, Rentaro decides to sacrifice himself, knocking Enju uncounscious after bidding farewell to her.
La bombe EP est le dernier espoir de la zone de Tokyo. Suffira-t-elle à mettre fin à la bataille et sauver ce qui peut encore l'être ?
Senza notizie sulle batterie per alimentare le luci, Rentaro e i suoi stanno per affrontare l'avanzata Gastrea nell'oscurità, quando migliaia di lanterne sembrano illuminare il cielo per loro.
影胤たちを迎え、ついに完成を見たアジュバント。そして、アルデバランを迎え撃つオペレーション『レイピア・スラスト』を決行すべく、かつて人類が勝利を手にした『回帰の炎』が最終決戦の地に選ばれる。小さな、しかし確かな希望と祈りを背中に受けて、戦いに臨む蓮太郎たち。仲間たちの助けを得て、巨大なガストレアと対峙した蓮太郎の拳は、その堅い外殻を突き破り、アルデバランへと『切り札』を叩き込む――！
알데바란을 해치우기 위한 마지막 작전 ‘레이피아 스러스트’. 렌타로는 우여곡절 끝에 알데바란의 몸 안에 EP 폭탄을 집어 넣는 데 성공한다. 하지만 뜻하지 않게 멈춰 버린 EP 폭탄과 함께 마지막 희망이 사라져 버리고. 렌타로는 알데바란과 함께 죽음을 맞이할 결심을 한다.
Satomi toma el mando y va en busca de Aldebarán para derrotarlo. Luego de la batalla, Kisara descubre secretos sobre su familia y la muerte de sus padres.
