Mistilteinn Falls.The Counter-Dragon Squad barely evades Basilisk's enhanced Catastrophe thanks to Honoka's quick actions and Yuu's antigravity, and is subsequently forced to retreat. After studying the combat data of the operations against Basilisk, Yuu comes up with a plan to defeat the Dragon and asks for Major Loki's assistance in order to secure Mistilteinn. Although curious, Loki agrees to help out. When the Counter-Dragon Squad assembles, Yuu explains his plan, which involves using dark matter conversion in order to generate enough mithril to enable Mistilteinn to withstand the enhanced Catastrophe for its five-second duration. Although everyone is enthusiastic about the new plan, Honoka confronts Yuu privately, stating that she believes Basilisk can see into the future. Before she can elaborate, Yuu is dragged away by Iris in order to help resolve a fight between Lisa and Mitsuki, caused by the fact that Mitsuki wishes to descend along with Mistilteinn in order to control its trajectory. When everyone else also volunteers, Lisa announces that she has thought of what she wants Mitsuki to do in order to make amends for Miyako's death. She demands that Mitsuki include everyone in the operation and think up of a plan that will enable everyone to return alive. After conversing with Mitsuki, Yuu goes to the infirmary, only to discover that someone has taken Tear. He soon finds out that Honoka is the one responsible, who proceeds to reveal that her true identity is Kili Surtr Muspelheim.