Karin, a junior‑high student, one day believes she has found an injured piglet in the sky. She feeds the exhausted animal an apple, and it revives. The pig turns out to be Tonrariano III, a prince from the planet Booringo, who rewards her by transforming her into a super‑powered pig. Though initially unhappy, she had dreamed of becoming a glamorous heroine like the parody “Cutey Chao”, Karin gradually embraces her new role as Super Pig, discovering that she can transform further…