Fifteen-year-old Nene works as a professional curse specialist ("Noroiya") alongside her older sister Yoyo in the Magical Kingdom. With black hair, blue eyes, and a mature demeanor, she is frequently mistaken for the elder sibling. Though devoid of innate magical abilities, she compensates through exhaustive expertise in magical artifacts, spells, and techniques.

Nene shares profound mutual respect and affection with Yoyo, harboring no resentment toward her sister’s magical talents and providing unwavering support during missions. When Yoyo becomes stranded in the human world while investigating a mysterious tree intertwined with modern structures, Nene remains in the Magical Kingdom. There, she researches interdimensional disturbances affecting both worlds, maintaining communication via a crystal ball she sent alongside a suitcase of magical tools during Yoyo’s abrupt departure.

Calm, sensible, and reserved, Nene contrasts Yoyo’s energetic impulsiveness. She responds to situations with level-headed composure, rarely raising her voice—though persistent romantic advances trigger visible annoyance. Committed to resolving the crisis, she meticulously investigates magical anomalies, focusing on the tree’s link to the human dimension and its role in witches’ disappearances.

Throughout unfolding events, Nene actively coordinates cross-dimensional efforts to counter the merging worlds and emerging threats, including humans transforming into gelatinous monsters. Her contributions prioritize intellectual problem-solving and logistical support over direct magical intervention.