Sho Hinakawa functions as an Enforcer in Division 01 of the Public Safety Bureau's Criminal Investigation Department, originating from Tokyo-to, Nakano-ku. Born December 26, 2094, he possesses a height of 175 cm and weight of 55 kg. His gray eyes and messy red hair—often obscuring his left eye—accompany a standard uniform of black suit, white shirt, and black tie featuring bright purple lining on rolled sleeves. Field operations add a light brown hooded jacket secured by frog closures. His vision measures 0.7 (left eye) and 0.9 (right), and he completes a 50-meter sprint in 10.3 seconds. Reserved and introverted, Hinakawa rarely engages verbally in social or professional contexts. Diagnosed with major depressive disorder in October 2107, he developed medication dependency, habitually blending soft drugs into meals like supplement kake gohan. Despite this, his expertise in holographic technology and drug identification remains unparalleled—evidenced by uniquely detecting Kirito Kamui’s holographic disguise and distinguishing substances during investigations. He sustains himself on 2–3 hours of nightly sleep and adheres to a personal motto prioritizing Akane Tsunemori’s protection, addressing her as "Onee-chan." Educationally, he graduated from Nakano Municipal Daisan Junior High School in March 2111, then enrolled at Nakano Municipal Fuji High School. Professionally, he began as a holo-designer in September 2111, simultaneously earning a Holo Designer Level 1 License. Further certifications include a Medical Herb Coordinator Certificate (February 2012) and Professional Homeopathy qualification (June 2012). Health decline forced school leave in September 2013. Apprehended in January 2114 for involvement in the Incompatible Drugs Case—fatalities from drug interactions—he underwent confinement at Hachiouji Rehabilitation Center until August 2114. Post-release, he abandoned formal education and joined Division 01 as an Enforcer in October 2114. His relationships hinge on mutual trust with Akane Tsunemori, maintaining regular communication despite objections from superiors like Chief Mika Shimotsuki. His emergency contact is mother Kazuko or Hisako Hinakawa in Tokyo-to, Nakano-ku. The Sibyl System rates colleague compatibility: A+ with Kazumichi Irie, D- with Arata Shindo. Personal trivia reveals hobbies like drug distinguishing, collection hunting, VR hockey, and card games (particularly development/training simulations). He showcases collections on his room’s built-in shelf—his favored space feature. Literary interests include "Speed" by Ishimaru Genshou and "Passing Through the Middle of Eternity" by Nakajima Ramo, valued for encouraging narratives. He dislikes cannabis and covets an unattainable "Transformation Hero" series buckle. Across multiple seasons, he persists as Division 01’s "Hound 4," gradually integrating while retaining quietude and medication reliance. His technical acumen consistently aids investigations, specializing in holographic evidence and drug analysis.