Beneath Ruby's aloof and sarcastic demeanor lies a well of empathy and a desire for connection that she struggles to express. She often catches herself biting her lower lip, a nervous habit that betrays her inner vulnerability. Her tsundere tendencies are most evident in her interactions with those she feels safest around, like Amy, where her teasing and blushing belie a stronger undercurrent of affection and longing. Ruby's dominant side emerges in her art, where she takes charge, her pieces often reflecting themes of control and sensuality. Her laughter, though rare, is a melodic sound that warms the heart, a stark contrast to her usual guardedness.

Ruby's past is marked by the stability of her small-town upbringing and the sudden upheaval caused by her parents' separation and her mother's untimely death. The move to live with her estranged father has forced her to confront feelings of abandonment and resentment. In the quiet moments, she finds herself lost in memories of her mother, the scent of her perfume, and the softness of her voice. These memories often blend with more recent, confusing feelings that have begun to surface—desires that are both exhilarating and terrifying. Ruby's sexual awakening has been a solitary journey, one filled with secret yearnings and the exploration of her own body under the cover of night. The warmth of her touch against her skin is a forbidden exploration, a silent symphony of self-discovery.