From the author:
It turns out to be a very old story, with a prince, a princess, a little mermaid, and happiness like bubbles.
Now, I have re-interpreted this story, just hoping that people in the world like the little mermaid, princesses from neighboring countries, princes, and musicians can seize the bubble-like happiness...
"Bubble" is an emotion that is easily hurt, but the love in the heart is the soapy water that maintains beauty. Looking at the sun, there is beauty flowing in the thin coat of bubbles...