Conan notices that the back alley of the salon is positioned directly above the garbage collection point, providing a vertical shortcut.
Why? Because stirring coffee with a spoon is a trademark nervous habit of (the codename for Shuichi Akai, the FBI sharpshooter who was supposedly killed in Episode 504).
Though Amuro appeared earlier in the range (Red, Yellow, Black cases), Episode 506 cements his role as a mysterious, intelligent, and physically capable character. His actions here—observing security flaws, memorizing employee shifts, and blending in perfectly—showcase his espionage training. Fans of the series know now that he’s a PSIA agent (Public Security Intelligence Agency) infiltrating the Black Organization as Bourbon , but in 2008, this was a major mystery.
