Originating from the distant world of Origamio, Koyan the Origami Ninja landed on Earth to seek the enchanted stone known as 'Hapiton,' which grants joy to all who touch it. Along his quest, he was joined by childhood companion Namin and a ally named Lublin. Suddenly, the antagonist Evilrun emerged—a figure whose stomach contains a consuming void that swallows everything in its path. Whenever an obstacle arises, Evilrun intervenes to thwart Koyan and his companions, yet her true motive remains concealed.
