Arrested one of the drug pusher, and marched into the hiding place alone without the co-worker investigator who located the hiding place by a forcible method waiting for arrival of the Mami. There was a phone call from a drug ring under the Mami, and told the Koto which made a co-worker investigator a hostage. For the organization which suggested the exchange with an investigator and the trafficker, the Mami pretends to accept business, and go to the wait place.