It's September, and summer break is now over. The last part of Kiyotaka's training brings him to Komatsu's detective agency, where everyone is surprised to find that his partner will be his longtime nemesis, Ensho. Their first request is a strange one: a client wants to know who "killed" him. Meanwhile in Gion, a geisha is being stalked and ghost sightings are on the rise. These curious mysteries have the troubling trio-Komatsu, Ensho, and Kiyotaka-running through the narrow streets of Kyoto on the case!
