Ai to Yuuki no Pig Girl Tonde Buurin

A junior-high student named Karin discovers what she believes to be an injured piglet. The piglet, however, is simply weak from hunger and recovers after eating Karin's apple. He identifies himself as Tonrariano III, a prince from the planet Booringo. As a thank-you, he transforms Karin into a pig with superpowers. Displeased with the transformation, she had hoped to become a superheroine like "Cutey Chao." Karin gradually becomes more accepting of her new identity when she learns she can transform into a character resembling "Cutey Chao" by collecting 108 pearls through performing good deeds for others.