Storyline Aquadine is a joyful and entertaining journey through a mythical and mysterious town. It features a cast of endearing characters with distinct personalities and solid backstories. The story takes place in a town based on mermaids and magical stories, so water themes are prevalent in almost every aspect of the game. Story Progression Aquadine begins simply enough when we meet Ciel, a tour guide in the fictional city of Aquadine. As you progress, you will discover that he is hiding a few secrets behind his cheerful demeanor.