This is a story about a curious and rebellious merman hitting the surface and losing his marine-self. But a helpful and attractive teenage boy helps him discover the world beneath his feet, which he struggles to use. His brothers are frantic and is searching the entire sea for him. Time flies and Wonbin starts developing feelings for the teenage boy.. but he knew they could be nothing more as they weren’t even the same species. The boy probably thought he was a freak. But in the end..?