Chiyo Kurihara is the compassionate and sensible younger sister of Mari Kurihara, President of the Underground Student Council (USC), and daughter of Chairman Kurihara in Prison School. Unlike her strict and intense older sister, Chiyo is gentle and empathetic, often acting as a peacemaker in the chaotic environment of Hachimitsu Academy. Despite her kind demeanor, Chiyo has a strong sense of justice and is unafraid to stand up for what she believes is right. Her friendship with Kiyoshi, one of the male students, positions her as a voice of reason amidst the tension, and her caring personality makes her an emotional support for those close to her.

Personality & Appearance

Credits: Akira Hiramoto 

Chiyo’s warm and approachable nature is reflected in her appearance, with her soft brown hair and kind brown (or purple, in the manga) eyes that exude sincerity. She wears her school uniform with modesty, and her petite stature and calm expression make her approachable to those around her. Unlike her sister, Chiyo is often gentle and understanding, preferring peaceful resolutions and openly empathizing with the male students. Her loyalty to friends and family makes her strong-willed, allowing her to confront injustice with surprising courage when needed.

Skills & Abilities

Credits: Akira Hiramoto 

• Empathy and Understanding: Chiyo can naturally empathize with others, which often makes her a source of comfort to those around her and allows her to form strong bonds.

• Resilience: Despite the intensity of her surroundings, Chiyo stands firm in her beliefs and advocates for what she feels is right, particularly when her friends are mistreated.

• Mediation Skills: Chiyo’s kindness and willingness to see both sides of a conflict make her a natural mediator, helping ease tensions between the USC and the male students.

• Leadership Potential: By the series' end, Chiyo steps up as the President of the Underground Student Council, showing her capacity to lead with fairness and compassion.

• Chiyo's relationship with her sister, Mari, is both supportive and strained. They have opposing perspectives on the male students' place in the academy.
• Her friendship with Kiyoshi is one of the few connections that crosses the gender divide, offering a refreshing sense of trust and openness.
• Chiyo’s kindness and sincerity have made her one of the most beloved characters in Prison School, providing a softer contrast to the more intense characters around her.
• She is often depicted as an animal lover, adding to her reputation for gentleness and compassion.