Misono tells Mahiru of a weapon called Lead that Eves get from their Servamp, so Mahiru asks Kuro to give him one, which takes the form of a broom. Meanwhile, one of Mahiru's close friends, Sakuya, is revealed to be one of Tsubaki's Subclass. The next day, Mahiru realises that his memories of Sakuya are starting to disappear...