Ibuki finally got Shikimori's Treasure. He ignored Shinya and got his elder sister's Natsuo to be revived. However, Ibuki's thoughts returned and the secret formula began take a shape of its own as the demons attacked him. So, Haruhi finally appeared at the origin of Yuma's disappearance.
The head of the Shikimori family can use the power of the treasure to command the souls of the dead.