Youko, a female kitsune youkai with fiery red hair and piercing blue eyes, stands at 162 cm with a slender frame, her proportions marked by an 86 cm bust, 59 cm waist, and 87 cm hips. She favors a simple turtleneck tank top in human form, concealing or revealing her fox ears as she chooses, and shifts effortlessly into a fox’s shape. Her combat prowess lies in "jaen," coiling flames lashing from her fingertips, and "dai-jaen," its amplified counterpart, alongside "shukichi," the teleportation of objects. Though undaunted by malevolent spirits, ordinary dogs trigger an instinctive dread rooted in her lineage. Once a solitary trickster ensnaring travelers with false kinship, her life shifted when Keita, a child offering chocolate cake, inspired her to seek a contract as his inukami. Playful and impetuous, she balances a childlike whimsy with pragmatic fussiness over budgets, often nagging Kantarou to complete his manuscripts. Whispers suggest she might wield the power of a nine-tailed kitsune, a latent truth hinted beneath her spirited antics.