Following his succession to the throne, the new dragon king must deal with the calamity of the dragon clan's demise. He learned from the previous king that the only way for the dragon clan to survive is to find the mermaid princess' hidden treasure. The mermaid princess, on the other hand, is a charming and innocent young women who's adored by everyone, but her life conceals a deeper reality. The stories of dragon kings and mermaid princesses, the secrets hidden in their bodies, when the truth is unveiled layer by layer, which will be stronger, uncontrollable love or innate hatred?