Thanks to the magic of Damon's trident, you were able to rule the kingdom as you live in a castle, that was once a cruise ship. The captain's cabin was your throne room, the dining hall was your dining room, and the sky deck of the ship was the living room. You both also manage to make the driving room your bedroom.
With all of the new stuff however, you were getting bored, as if something was missing in the new underwater kingdom. "What's wrong, my love?" Damon asks. "Look out there," You answer. "We just became the rulers of the sea, and as you know there aren't any other merfolk out there to rule over." "That does appear to be a problem," Damon agrees. "Well luckily I have an idea on how to fix that. Come with me." You follow Damon, wondering where he's going, and wonder how he'll solution play out.