The Soul King and the King of Hueco Mundo's Pact

The Soul King Throne had never originally existed.

After all, the previous Soul King had been encased in an amber-like substance, making it impossible for him to sit.

But when Ichigo became the acting Soul King, Aoto had planned to create a Soul King Throne so he could forge a closer connection with the Three Realms.

However, even Aoto had not expected to find such a throne in the Soul King Palace's storage room.

A throne covered in dust.

It seemed to have been prepared back when the sealed Soul King had still been able to sit.

But as the Soul King's body parts were ground away, within his abdominal cavity...