It's an old fairytale. The princess of an underwater kingdom spots a prince on a ship, and saves him during a storm at sea. He doesn't know it was her, however, since the humans and mermaids can't co-exist, so she leaves before he wakes up.

She falls in love with him from afair, wishing she could be with him...it's quite sad, like most traditional fairytales are.

[ pause ]

The mermaid princess finds a sea witch willing to help her, to give her legs...for a price.