Kogoro Mouri, a private detective and father to Ran Mouri, once served in Tokyo Metropolitan Police Division One alongside Inspector Megure before departing due to critiques of his investigative acumen. His marriage to attorney Eri Kisaki dissolved into separation—though legally intact—spurred by his flirtatious tendencies and unpolished professionalism. Confident yet comically inept in routine cases, Kogoro habitually leaps to flawed conclusions, misinterpreting clues like the grape-peel-stained mahjong tile he mistakenly declared a 1-pin in *Magic File 3*, costing him the game. However, cases tied to Eri or Ran ignite uncharacteristic focus, sharpening his deductive precision and interpersonal intuition, though still overshadowed by peers like Shinichi Kudo. A lover of mahjong, baseball, and horse race bets, he idolizes pop star Okino Yoko, her memorabilia cluttering his alcohol-strewn office and home. Cigarettes and empty beer bottles punctuate his disheveled spaces, while mahjong comrades cheekily dubbing him “Mouri-Chan” witness his near-triumphs sparking daydreams of baseball glory—a home run swing fantasy following a close match. Cinematic adaptations expose a timidness around heights absent in manga renditions. Despite sarcastic quips toward clients or cringe-inducing public scoldings of Ran, flashes of paternal ferocity and competence emerge, particularly under personal duress, tempering his otherwise lax, brash persona.