The series will follow the descendant of Kobayashi from Edogawa Ranpo's series of detective novels.

Ryo Saeba is back as the City Hunter, a sweeper (private detective) working on the streets of Tokyo. He and sidekick Kaori Makimura are hired to solve the problems of desperate people. When Ryo is not using his sharp shooting skills against bad guys, he's aiming his sites on pretty ladies. Kaori uses a giant anti-ecchi hammer to make sure he behaves. (Source: ANN)

Ranma and his partner Rera run a detective agency in Giraffe City. An arranged accident leaves Rera and Ranma in an unfortunate state where the two detectives swap bodies at the stroke of midnight. With Ranma dissapearing and the beautiful Rera appearing. (Source: ANN)