Ep. 3: The Princess and the Poison Apple

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Rina has fallen into a coma. Aya gets the idea to find a magical girl who could heal her so she could tell them what she knows. Yatsumura finds her Slaughter Notebook, which has photos of other magical girls, and they realize one of them is Nijimi, an idol from the Inu Asobi group. Nijimi invites them to her home, when they discover her power is mind control and that her best friend, also a magical girl, was killed by Rina. Aya and Yatsumura go to visit Rina at the hospital, where Sarina overhears them talking about magical girls. Kaname, who's getting angsty by being unable to use his sister as punching bag, discovers the magical girl site on her browser's history. (Source: Wikipedia)