Kogoro Mouri runs the Mouri Detective Agency in Beika Town, sharing his home with daughter Ran Mouri and the shrunken Shinichi Kudo, known as Conan Edogawa. A former officer with Tokyo Metropolitan Police Division One, his departure from the force lacks full confirmation in the manga, though a hostage incident involving his wife Eri Kisaki is suggested as a factor. He maintains a strained relationship with Eri, who moved out around the time he left the police; they remain married, and Ran actively tries to reconcile them. Kogoro possesses an overinflated sense of his detective abilities, frequently making unprofessional or sarcastic remarks during investigations. He typically follows only obvious clues, leading to incorrect conclusions, and relies heavily on Conan’s unseen assistance. Conan uses a stun-gun wristwatch to tranquilize Kogoro and solves cases using a voice-changer bowtie to imitate Kogoro’s voice, earning him the nickname "Sleeping Kogoro." This method has significantly boosted Kogoro’s reputation, with police often preferring his tranquilized state for accurate deductions. Despite his usual incompetence, Kogoro demonstrates genuine deductive skills and professionalism in cases involving family, particularly Ran or Eri, showcasing improved logical reasoning and a better grasp of interpersonal relationships than Conan. His personality includes a tendency to flirt with attractive women, especially idol Yoko Okino, embarrassing Ran and contributing to Eri’s reluctance to reconcile. He enjoys drinking alcohol, smoking, betting on horse races, playing mahjong, and watching baseball. Medical issues include high uric acid and cholesterol. Kogoro also possesses a strong sense of justice, rejecting any justification for murder and intervening to prevent suicides or further crimes. In "The Disappearance of Conan Edogawa: The Worst Two Days in History," Kogoro does not appear directly. His absence is noted when Ran expresses concern about Conan’s disappearance, reflecting Kogoro’s guardian role. The plot centers on Conan being kidnapped after witnessing suspicious activity at a bathhouse, where he feigns amnesia to uncover a bomb plot. Kogoro’s established traits—his reliance on Conan for detective work and his protective nature toward family—inform the context of Ran’s anxiety during the incident, though he remains uninvolved in the resolution. Kogoro’s background includes graduating from Teitan High School and Beika University, where he excelled in judo despite stage fright. His physical abilities include proficiency in judo and marksmanship. While his detective skills are generally lacking, he follows proper police procedures and can solve cases independently when emotionally invested, such as in situations involving Eri or old acquaintances.