Yukime, a yuki-onna born in northern Japan’s snowy peaks, forged a lifelong bond with Meisuke Nueno after he rescued her from a village hunter in childhood. Bound by yuki-onna tradition, she vowed to reunite with him as an adult to eternally freeze her chosen lover. Returning to Dōmori upon maturity, she sought to claim Nueno, halting her initial assault when his fierce protectiveness toward his students stirred her empathy. Her icy resolve thawed into a passionate, often comedic courtship as she adapted to human life.

Her powers command ice and snow, freezing foes, summoning barriers, and crafting shaved ice. Heat weakens her, forcing remedies like retreating into snowmen—a process humorously complicated by her nudity. Post-revival by the Mountain God, her heat sensitivity lessened but lingered. She also possesses minor healing skills and figure skating prowess, later coaching in Dōmori.

Key ties include rivalry with Ritsuko Takahashi, a human teacher admired by Nueno, and camaraderie with his students, who aided her romantic endeavors. Tricked by the Mountain God’s servant into nearly killing Ritsuko—a test of loyalty to yōkai customs—Yukime sacrificed herself to destroy the servant, dissolving into snowflakes. Reborn without memories or warmth, she grappled with fractured identity until residual emotions rekindled her affection for Nueno.

In *Jigoku Sensei Nube Neo*, set a decade later, their mutual romance unfolds alongside Yukibe, a snow-child born of her maturation ritual. Mistaking himself their biological son, Yukibe complicates their dynamic. The *Reibaishi Izuna: Ascension* timeline briefly pits her against Nueno in a jealousy-driven clash, resolved through comedic misunderstandings.

Her journey spans antagonism, self-sacrifice, rebirth, and reconciliation, mirroring themes of love bridging supernatural divides. Across films and OVAs, her role blends comedic persistence with emotional depth, balancing yōkai instincts and human bonds.