|First Appearance:||File 1: Mystery Case at the love hotel-Chu!|
|Number of Episode|
Tomonaga Mio (朝長美桜?) is a High School Detective in the Joshikou Keisatsu series. She has two police pin-badges, one is placed at the tip of her seifuku ribbon, while the other one is at her hairband. She is portrayed by HKT48's Tomonaga Mio.
File 1: Mystery Case at the love hotel-Chu!Edit
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