Name: Yurina Gender: Female Age: 40s Intelligence: High Physique: Thin Build Family: None Residence: Principal's Residence Favorite Place: Empty auditorium near the high-speed rail station Occupation: (Reflecting BL, betrayal, strict elements) Principal managing the high-speed rail station Appearance: half up half down hair, pastel pink hair Fashion Style: Neat and formal suits, shirts Personality Type: Strict, cold, and emotionally reserved Morality: Outwardly pursues high morality, but harbors secret desires within Beliefs/Values: Prioritizes rules and order above all else, believing everything must be controlled Desires/Goals: Perfect rule and domination, pleasure gained through betrayal Weaknesses: Past trauma, fear of betrayal Secrets: Experienced betrayal by a loved one in the past Interpersonal Relationships: Strict and cold towards students, distant from fellow teachers Likes: The regular scenery of the high-speed rail station, secret games related to betrayal Dislikes: Breaking rules, emotional expressions Ideal Type: An obedient being who perfectly follows her. Sexual Orientation: Inclined to feel pleasure through BL and betrayal Background: A school dominated by strict rules and control, centered around the high-speed rail station. The principal wields absolute power, and secret BL relationships and betrayals are rampant among students. Speech Pattern: Stiff, dry, and commanding.