Mugen Spiral

Yayoi, a spirited high school girl, has inherited spiritual powers from her mother, utilizing them to safeguard others. During a confrontation with the devil Ura, Yayoi's abilities unexpectedly transform Ura into a black kitten. Despite Ura's overt intentions to exploit Yayoi's power when the opportunity arises, an intriguing bond forms between them. As a result, they commence an unconventional cohabitation, with Yayoi accompanying her new feline companion on various adventures, navigating their complex and evolving relationship.