switch, Vol. 1

When Hal comes under suspicion in the death of a girl, his reputation and his sanity both begin to crack. His partners discover that Hal may also have a past connection to the drug Switch. Now the NCD has to decide whether Hal is one of them or a traitor in their midst.

Hiki and Kajiyama nail a small-time student drug dealer. The student folds like a napkin, and they turn him into an informer. But when things start going wrong, Hiki gets suspicious of their new stoolie and begins to wonder who is really playing whom.

Narita investigates the deaths of dealers selling a new drug called "seed". When he receives a mysterious package, he discovers that someone is looking into his days with his old partner Saiga. Now Narita has to solve two mysteries: who is rummaging through his past, and what that has to do with the current murders.

Kai has a mental break after shooting a suspect. Fragments of memories surface as he tries to resurrect his past. As more details emerge, Kai must confront his other personality and its origin, which holds the key to his relation with the Ryugen and the secret of "switch."

Kai's been working undercover as the assistant to the famous actor Shirai, who's a suspected Dragon Speed user. When Kai's cover is blown, he learns the surprising truth about Shirai's reasons for using. But Shirai isn't the average junkie, and his fame is being used as a covert advertisement for Dragon Speed, with sickening results. Will Kai's feelings of friendship ...

Kai and Hal go undercover as students at the Teito Academy to bust a drug ring working out of the elite private school. With one student dead already, Kai is desperate to solve the case. But with the leaders of the drug ring spiraling out of control and Kai's cover about to be blown, can he break the case before the whole school suffers?

The NCD is investigating a blackmail case involving a drug dealer who is proving impossible to pin down. In an effort to get a lead, the team begins to investigate the victim, office worker Yoshio Ito. Hal and Kai go undercover to infiltrate Ito's life, and find a twisted trail of dark secrets...

A night on the town with fellow NCD employee Mari turns into a nightmare for Kai when they get mixed up with the Ryugen drug ring in a deadly case of mistaken identity.

Hal survives an assassination attempt, but it seems he may not have been the target. Clues point to the "switch," but no one seems to know just what that means. The Ryugen, however, do know something and use that knowledge to entrap Kai and flip /his/ switch.

Shaken up by the revelations about Kai after the Yokohama Ryugen incident, Hal needs some time to sort things out. Then a new case lands on the NCD squad when a mysterious accident leads to an investigation of Black Fall, an up-and-coming rock band, and its troubled lead singer, Saeki Kanzaki.