Teen actress Kaho has been given the starring role in this TV Asahi drama series. The show is based on Akagawa Jiro's popular mystery novel San Shimai Tantei Dan. The original story featured a team of three sleuthing sisters, but the drama adds a fourth. Kaho plays the youngest sister Yuriko. The other three are played by Nakagoshi Noriko, Kato Natsuki, and Ichikawa Yui.
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