Synopsis
Set in a futuristic world where humans and mermaids coexist, ChaO centers on Stephan, a gentle office worker at a shipbuilding company, whose ordinary life is thrown into chaos when he is unexpectedly proposed to by Chao, a princess of the mermaid kingdom. Before he can even grasp the situation, Stephan finds himself living with the impulsive and wholehearted Chao. As her sincere love gradually chips away at his emotional defenses, a surprising and touching romance begins to bloom.
