Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. With his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of Dragon Speed, a dangerous new drug. But Ryugen, the syndicate trafficking the drug, is almost impossible to infiltrate. Add street violence and a jurisdiction war with the Meguro Police, and poor Kai is in for some very long days at the office.

Can the Narcotics Control Division save the streets from drugs' invisible threat? Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. With his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of Dragon Speed, a dangerous new drug. But Ryugen, the syndicate trafficking the drug, is almost impossible to infiltrate. Add street violence and a jurisdiction war with the Meguro Police, and poor Kai is in for some very long days at the office.\` Kai's been working undercover as the assistant to the famous actor Shirai, who's a suspected Dragon Speed user. 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 for the actor get in the way of the investigation?

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. 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?

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. The NCD is investigating a blackmail case involving a drug dealer who is proving impossible to pin down. In an effort to get any leads, 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...

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. 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.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. 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.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. 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.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. When Kai goes undercover with Section 2, he falls into real danger when he is separated from the rest of the unit. He ends up in dark room full of suspicious characters, one of whom has the brand of a Ryugen slave. Now Section 2 must race to find him before it's too late.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of dangerous new drugs. 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.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. Together with his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of a dangerous new drug—Dragon Speed. 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."