A Dark Rabbit Has Seven Lives - Season 1, Episode 10: Spirited Classmates

While traveling, Saeko's vehicle is attacked and Haruka has been kidnapped by two male magic wielders called spellbreakers. Cross refuses to let Taito and the rest rescue her, saying that it's now a military matter. One of the spellbreakers appears to Saitohimea while she is alone and offers to release Haruka if she would surrender herself to them. Izumi tries to talk her out of it and then goes to Taito when she fails. She turns herself in to the spellbreakers, but they trap her instead and refuse Haruka. Taito and Gekkou then assault the school to open a gate to where the spellbreakers are. Meanwhile, while they assault the school it is revealed that the observer personality of Haruka's was the one who commissioned the spellbreakers. She promised to give them her knowledge about the Tenma if they would destroy the observer personality, seal up Saitohimea and then return her other self back to Taito.