The Story of the Princess and the Little Mermaid

A selfish princess comes across an injured mermaid and decides to nurse her back to health, but not out of kindness - the princess intends to sell the mermaid and make a profit once she's healed! Strangely, the mermaid doesn't seem to mind this at all. Time goes by for the two of them until the princess tells the mermaid that she has changed her mind...