Whale
If you travel to the fish capital, you'll find the leader of all fish, the mighty whale! Okay, so a whale isn't technically a fish, but that's why it makes such a good leader. You can usually only find whales hanging around near the capital because they really enjoy ruling over all the other fish. They are the biggest, after all.
Picture the underwater fish capital. Statues of whales line the fishy streets, and all of the fish bow down to the whale ruler's giant body.
げい
くじら
None
The whale who resides over the capital just happens to be gay (げい). You only know this because his husband is a man whale too. Actually, now that you think about it, all the whales you've ever met have been gay.
Picture the gay whale ruler holding whale hands... fins? with his whale husband. They're so cute.