Kogorō Mōri is a private detective and father of Ran Mōri. He previously served as a police officer in the Tokyo Metropolitan Police Division One alongside Inspector Megure. Despite being an excellent marksman and skilled in martial arts—particularly judo, where he was the ace of his university team—he was not considered a strong investigator during his police career. His reasons for leaving the force remain unconfirmed in the manga, though a movie suggests it may relate to an incident where he grazed his wife Eri Kisaki's leg with a bullet to save her from a hostage situation. Around that time, Eri moved out, though they never officially divorced. Their daughter Ran attempts to reconcile them, but Kogorō's flirtatious behavior around other women hinders Eri's return. Kogorō operates the Mōri Detective Agency, often displaying laziness and unprofessionalism; he prefers to laze around unless clients are attractive women. He possesses an inflated sense of his detective abilities and rarely questions why he frequently loses consciousness at crime scenes, awakening to solve cases with deductions he does not remember making. This pattern stems from Conan Edogawa, who lives with the Mōris and uses a stun-gun wristwatch to tranquilize him, then presents deductions through Kogorō's voice using a voice-changer. This earned Kogorō the nickname "Sleeping Kogorō" and a reputation as a master detective. While typically reliant on Conan's deductions, Kogorō demonstrates genuine investigative skill when cases involve personal stakes, such as threats to Ran or Eri. In these situations, his demeanor shifts to serious and professional, showcasing improved logical reasoning and a stronger grasp of interpersonal dynamics than Conan, though he still struggles with clue-gathering. In *Detective Conan: Black Iron Submarine*, Kogorō accompanies Ran, Conan, the Detective Boys, and Hiroshi Agasa to a Suzuki family resort on Hachijo-jima. When Ai Haibara is kidnapped by the Black Organization, Conan investigates the Interpol facility Pacific Buoy. A murder occurs involving an engineer named Leonhardt. Conan solves the case and reveals the culprit, Grace (who is also the Black Organization member Pinga), using Kogorō as his proxy. Kogorō's role follows his established pattern: he serves as the public face for Conan's deductions, with no indication he is aware of this dynamic or actively participates in resolving the broader conflict involving the Black Organization's submarine plot. Kogorō has several notable habits and traits. He is a heavy smoker and often drinks alcohol, frequently leaving beer cans littered in his office. He idolizes pop singer Yoko Okino, collecting her merchandise and displaying her posters. His hobbies include gambling on horse races, playing mahjong (often losing), and watching or playing baseball. He suffers from mild acrophobia (fear of heights) in films and some anime episodes, though this trait is less consistent in the manga. He also has health concerns like high uric acid and cholesterol. Despite his flaws, he possesses a strong sense of justice, rejecting any justification for murder and intervening to prevent suicides or further violence by culprits.