When a detective has only one arm, refers to a case as a riddle, or that detective plays/enjoys piano.

Based around the songs Nazotoki (Riddle Solving) and Nazokake by Hinata Haruhana, in which the character Len is a one-armed detective who played the piano.
Person A: “Yo man, didn’t the Shuichi dude from Danganronpa have a thing for that one piano lady?”
Person B: “A detective and a piano player? Combine the two, and that’s Nazotoki Len for you!”
Person A: “Damn, is that a Nazotoki reference or something?”
by kotokomaru April 28, 2022
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