Sea Serpents are ancient creatures who live in the sea.
There are only three in all the world, and they are thousands of years old. The oldest is King Anko, and his brothers are Unko and Inko. They each have their own ocean, but visit each other every hundred years.
- Since there are only three in all the world, it is possible the A-B-Sea Serpent is either Unko or Inko.