Asa

Asa is Yuru's biological sister, raised under the care of the Kagémori household after fleeing their home village with their parents in early childhood. She wields 'Kai,' a unique inherited ability capable of forcibly dissolving all things, and engages in battle alongside her familiars Ohagi and Daifuku. Despite projecting a calm, contemporary exterior, she harbors an intense attachment to her brother. Driven by the need to confront the village's cruel fate and uncover the truth of her origins, she returns to her birthplace—making her the central heroine who propels the story's core narrative.