As it turns out, all of the events in Episode 11 were just Kakeru's vision of what would happen if he were to protect Yuka from Liselotte's attack. Determined to forestall those events from occurring Kakeru decides to kill himself to prevent Liselotte from taking his Eye. After stabbing himself, he has a flashback and remembers all of his childhood memories, particularly how Yuka has always looked out for him. To his surprise he wakes up in the infirmary. Misuzu explains that is he alive because Yuka nullified the sword when he stabbed himself, and that Liselotte couldn't fight on due to Yuka's ability also nullifying her powers...