Guppy is a romantic drama about the first trial of new, young love, set against the backdrop of the foreign world of Tokyo.

In a corner of the world rarely mentioned, Princess Sophia is the sole heir to the kingdom of Preanna. After the death of her mother she seeks freedom from her father, an insidious King driven mad by grief. A war brews in the neighboring nation of Nantio as violent revolutionaries stand against Preanna and the royal guard. Sophia endeavors to break the chain of tyranny rooted in her home country and her father's dictatorship.