S1, E1: Fifteen year-old Akari leaves everything behind to travel to Aqua, a sparkling planet covered in water. More than anything Akari wants to be an undine - a female gondolier who navigates the canals of the Aquan city of Neo-Venezia. As she begins her training with the prestigious Aria Company, will she be up to the challenges that await her on the path to achieve her dream?