Shōji Kirishima, known as George Kirishima, operates the Kirishima Detective Agency despite his unusually miniature stature. This physical condition necessitates unique investigative methods, driving his reliance on specialized equipment like escape chutes and remote-controlled vehicles for mobility.
He demonstrates significant resourcefulness and confidence in overcoming physical limitations to solve cases. When Asami Ashikawa seeks refuge at his agency, Kirishima swiftly activates a hidden chute for their escape to a waiting car. His adaptability extends to surviving hazardous situations, such as being accidentally trapped inside a refrigerator by Asami; confronted by a monstrous cockroach, he uses a lighter to create fire for warmth and defense.
His cases involve personal risk and unconventional challenges. While operating a remote-control Aston Martin, he encounters disruptive neighborhood boys, escaping them by splashing mud. Later, he intervenes to protect a girl from bullies, leveraging his small size to outmaneuver them. His role evolves as both employer and protector to Asami through their collaborations, though his background prior to the agency remains undisclosed.
Kirishima maintains a professional, occasionally critical demeanor, notably commenting on Asami's cooking which precipitated the refrigerator incident. His character operates exclusively within the "Detective George's Mini-Mini Big Strategy" segment of the anthology.