C336 Siren castle

Deep in the uninhabited Sea of Bitterness, there was a huge castle.

This was a castle built in the depths of the water. Long ago, the castle had a very bright name: Dragon City.

It was rumored that this used to be the resting place of the dragon race, but no one knew what happened afterwards. All the dragon race gradually dissipated, leaving behind an empty castle.

One day