At the Center of the World

After Raffles I is laid to rest, Shinra, Sho, and Iris suddenly disappear along with the rest of the Pillars. And now, with all eight assembled, the Great Cataclysm is only one step away. Even in this hopeless situation, the 8th wants to go look for Shinra and the others, but without any clues, they have no way to take action. Then, someone extends a helping hand to them, but who?