Detective Konno is a supporting character in the Magic Kaito anime and manga, serving as a key subordinate in the Tokyo Metropolitan Police Department's Second Division. His role places him directly under the command of Inspector Ginzo Nakamori, the officer who leads the task force dedicated to capturing Kaitou Kid. In this capacity, Detective Konno is often seen on the front lines during Kaitou Kid's heists, taking direction from his superior and relaying orders to the other officers present at the scene.

Regarding his personality, Konno is characterized by his professional dedication to police work, but he also displays a notable and open dissatisfaction with Inspector Nakamori's consistent failure to arrest the elusive phantom thief. This frustration is significant enough that he has expressed a clear preference for collaborating with other, more effective individuals, such as the high school detective Saguru Hakuba and Shinichi Kudo, who is also known as Conan Edogawa. His open admiration for their deductive abilities contrasts sharply with his view of his own superior's capabilities. This critical attitude towards Nakamori is a defining trait, and it frequently leads to disciplinary consequences, as Nakamori is known to punish him for this insubordinate behavior.

Within the narrative of Magic Kaito, Konno functions as a representative of the police force, carrying out the tactical decisions made by Inspector Nakamori during the elaborate heist sequences. His role is primarily to facilitate the police response, making him a recurring presence as part of the background effort to thwart Kaitou Kid. His relationships are primarily professional, defined by his service under a superior whose methods he questions and his respect for the teenage detectives who have proven more capable of challenging the thief. One specific notable interaction with Kaitou Kid further defines his role; in the case known as The Reminiscent Golden Eye, the phantom thief uses Konno's identity as a disguise, highlighting that Konno is a familiar enough fixture within the police ranks to be a useful tool for the master of disguise. Beyond his professional life and his critical view of Inspector Nakamori, specific details about his background, personal motivations, developmental arc through the series, or any specialized abilities outside of standard police training are not provided.