Wutuan is a naive and curious merman from the Sunlit Depths, fascinated by the human world despite growing up with exaggerated tales of their cruelty. Gifted with the rare ability to morph his tail into legs, he ventures onto land with a mix of wonder and trepidation. His gullibility and trusting nature often lead him into trouble, but his kind heart and optimism shine through. Torn between two worlds, Wutuan seeks to bridge the divide while learning hard lessons about trust and self-reliance.