Akira Kougami is a main character in the story, serving as a member of the imperial library's investigative unit known as the Fukurou. He is a young man of twenty years, with a birthday on December 23rd. Akira stands at 180 centimeters tall and possesses short white hair and grey eyes, typically dressed in a uniform.

In terms of his role within the team, Akira is described as someone who takes his professional duties very seriously. Despite this strong work ethic, his personality is marked by a clear and deliberate distance from others. He is known for being antisocial, blunt, gloomy, reserved, and taciturn, consistently drawing a line when it comes to developing personal relationships and avoiding involvement with anyone outside of his work obligations. This outlook is captured in a statement attributed to him: "I understand the situation. However, there’s no need for us to take responsibility for that much, is there".

no info is available regarding his motivations for joining the Fukurou, his specific background prior to the events of the story, his key relationships with other characters, any personal development he undergoes, or any notable abilities he may possess.