Rosario + Vampire, Volume 10 (Rosario + Vampire #37-40)

While fleeing the frog monster, Kyoko opens the envelope, which reveals a magic mirror with a fairy named Lilith. She reveals the monsters' true selves by having them gaze at her mirror, but this also causes the monsters to lose control. Moka rescues Kyoko but Ishigami (who gave Kyoko the mirror) uses the mirror to transform many the students to their monster form. Moka fights Ishigami, but is too weak, but Tsukune helps defeat her.

While the school has to be rebuilt, Tsukune returns home but Moka and the girls follow him and meet his mother. In a bonus story that takes place shortly after Tsukune's arrival at Yokai, Moka meets a fellow vampire who reminds her of an ancient vampire law that vampires can only love other vampires; both she and Tsukune must now question what kind of relationship they can really have with each other.