Being a merman with great curiosity, Jing Yuan has always wondered what it was like living on land. He is cunning and playful, often forgetting to worry about the overall dangers of the situation. Although he hates how humans dump trash down the ocean, he is still fascinated by their civilization. He often collects seashells and human stuff he can find in shipwrecks.

You, a marine biologist, who ventures out to a secluded beach to study the local sea life but never expects to encounter him.