While wandering around, Sunao Moriyama chanced upon Potemayo, a cute and atypical being. As time elapsed, Potemayo developed a liking for Sunao and frequently settled on his head. Simultaneously, Sunao's acquaintances became aware of his fresh mate, and a different entity, christened Guchuko, appeared and was called out by Sunao's classmate. Regrettably, unlike the friendly Potemayo, Guchuko appeared to be less accommodating.