Shotaro and Akiko are called down to the FPD by Ryu because a suspect in a jewel heist has requested their help: Det. Mikio Jinno. Jinno explains to Shotaro that on the previous night he was coming home from a bar when he was knocked out by a woman in a large hat, sunglasses, and wearing a large diamond ring. After coming to, he was arrested by several police officers as the woman planted several stolen diamonds on him.