Yaeka Sakuragi is the seven-year-old daughter of Kazuhiko Sakuragi, head of the Sakuragi yakuza family. Born on April 11th, she stands 120cm tall and has blood type A. Sheltered from her father's criminal world by his position, she lives as an ordinary elementary school student, attending without facing bullying or shunning. Her mother, Miyuki Sakuragi, entered a coma before Yaeka formed lasting memories, the result of a car accident. This absence created emotional distance; Yaeka once feared her mother hated her due to the inability to interact during hospital visits. She previously lived with her aunt, Kanami Kurosaki, before moving back into the Sakuragi household. Inherently shy, quiet, and introverted, Yaeka struggles with social interactions. She possesses deep sensitivity and compassion, strongly driven to help others in distress. Sensing anger, sadness, or anxiety in others, she responds with gestures like offering toys or drawing pictures. Her personality aligns with an INFP (Mediator) type, emphasizing idealism, empathy, and a focus on authentic emotional connections, manifesting as discomfort with conflict and a drive to reassure those around her. Alternative analyses suggest ISTP or Enneagram Type 1 traits, highlighting her sense of responsibility, perfectionism, and quiet self-reliance. She forms a pivotal relationship with Tōru Kirishima, her assigned caretaker. Initially addressing him without honorifics and behaving reservedly, she gradually develops trust and affection toward him. She acts as his "Morality Pet," softening his violent tendencies through her innocence. When Kirishima expressed self-loathing over his past, she firmly assured him of his inherent goodness, playing a key role in his emotional reconciliation. She shares a strong resemblance to her parents—inheriting her mother's appearance and her father's habitual frowning expressions. Her father demonstrates pronounced protectiveness over her, reinforcing her significance within the family dynamic. Her development centers on overcoming loneliness and forming deeper connections. Initially described as "miserable" due to her father's absence and her mother's condition, her bond with Kirishima provides stability and emotional support. She progresses from isolation to engaging with peers like Sara and the infant Hina, showcasing increased emotional openness. Her reconciliation with her mother's coma—facilitated by Kirishima's creative explanations—marks a key step in her emotional maturity. By the series' conclusion, she actively sustains meaningful relationships within her family and social circle.