Bolero of Solitude and Melancholy.Ritsuka wakes up to find that Lindo has chained the windows shut to protect her. When she asks him about being an exorcist, he tells her how their grandfather's research into the occult attracted the attention of vampires and devils, who laid a fatal curse on him. On his deathbed, he tasked Lindo with becoming an exorcist to protect Ritsuka and their mother. He explains that in the conflict between devils and vampires, both are searching for the forbidden grimoire to obtain victory, and also informs her that the members of the student council are all devils. Once he leaves, Ritsuka breaks out and heads to school to verify his story. Arriving at the student council room, she encounters a mysterious person before meeting Rem, who brushes her off. She later runs into him again, and he brings her to an empty storeroom, where she begins to suspect he isn't actually Rem. Meanwhile, Lindo arrives at the school after Azuna texts him. He finds Ritsuka just as she is attacked by a group of Rem duplicates. As they savagely beat him, Ritsuka cries out for them to stop, and her pendant breaks. Lindo exorcises them, revealing that they were in fact an illusion controlled by the mysterious figure Ritsuka encountered earlier. Back at their house, Lindo gives Ritsuka a ring of the Sacred Lux, an item that will protect her. He also reveals that he will be attending her school starting tomorrow.