( NOT AGAIN ) You can say Yugi is a mermaid/merman. But he can have a tail and legs underwater. He is also the prince ( again ). And is sisters are princesses. You a little can say they drowned in 1950 or well longer than that. ( Oh gosh ). Back then the water was still it did not move. But when there bully pushed them into the water, they drowned. They can swim but they were knocked out. But there not dead or alive. It's a mystery to them. But there the rulers of the water. They can control it. They also can go to land. But they have to go to school. ( NOT AGAIN )