Nina Sakura arrives on Earth from the Magic Kingdom, a witch-in-training tasked with finding a lost magical computer. Her background varies: the manga portrays her as a witch striving to prove herself after repeated magical failures, while the anime centers her mission on gathering five Holy Stones to qualify for marriage to the Magic Kingdom's prince. This quest pits her against childhood friend Maya Orihara, though Nina ultimately surrenders all collected stones upon recognizing Maya and the prince's mutual affection, choosing their happiness over her ambition. Her personality bubbles with perpetual cheerfulness, a deep love for sweets and manga, and unwavering loyalty. This self-sacrificing nature, aligning with the Enneagram Type 2 "Helper," sees her frequently neglect her own needs to assist others. She persistently aids Ayu Tateishi’s romantic endeavors, employing magic that often backfires comically or complicates situations. Despite clumsiness and occasional emotional volatility, she demonstrates resilience and creative problem-solving when resolving magical mishaps. Nina forms a profound bond with Ayu, who becomes her confidante regarding her magical identity. She develops romantic feelings for Hiroki Tsujiai, leading to a mutual relationship, though she initially fears her eventual return to the Magic Kingdom would require erasing Earth memories. Her interactions extend to classmates like Tetsushi Kaji, magical companions including her familiar Leo—a cat capable of human transformation—and childhood acquaintances like Yuta Kirishima. Magically, Nina relies on a handheld computer for spellcasting, specializing in transformation and healing magic. Her abilities encompass object transmutation, enchantments, and healing, yet spells frequently spiral into unintended consequences due to oversight or errors. Within the crossover game *Rakenzarn Tales*, she serves exclusively as a support healer, wielding skills like "Heal!" (restoring HP and curing physical ailments) and "Get up!" (reviving fallen allies), devoid of offensive capabilities and exhibiting low physical defense. Her character development involves shifting from seeking external validation—through magical competence or the princess title—toward valuing interpersonal connections and selfless acts. This growth manifests in her decision to remain on Earth with friends after forfeiting the Holy Stones and in moments where latent magical power surfaces during emotional extremes, such as a protective outburst when her familiar is harmed. Across narratives, she consistently prioritizes others' well-being amidst personal uncertainty or comedic adversity.