With Sapphire in hand, Illya transforms into a magical girl while still a stuffed bear. Her fierce battle with Rin and Luvia, whose minds have been replaced, leads them all to the bedroom occupied by Erica and Angelica. After regaining her original body, Illya continues to fight Angelica and learns the hidden truth about Miyu.

Yuto has been dominating the Twin Star Exorcists so far, but can help from an unexpected source change the course of their battle?

Sakaguchi falls for a girl, but she apparently has a secret...

Zenko arranges for Yahiko to help around the temple while he stays with her. Ashiya is relieved, but he soon runs into another yokai. The bird yokai Jomatsu is concerned for his heartbroken mistress Princess Anmo, who withdrew into an egg shell she made and hasn't come out for a long time. Jomatsu has been searching for the Mononokean so he can return to the Underworld with Princess Anmo still inside her egg.

Finally scaling the elephant's back, the Straw Hats continue their search for the other half of their crew! But the mysterious "island" on the back of the elephant may hold more danger than they bargained for, as they learn they are not alone!

Thanks to Shinonome's meddling with the system, Ibuki has become immune to the "siren song" of Ryuzu's imaginary world. Ibuki confronts Ryuzu alone and challenges him to a fight with everything at stake!