The series centers around two female police officers, Natsumi Tsujimoto and Miyuki Kobayakawa, who have different personalities, and their activities involving Bokuto Station.
She often demonstrates superhuman strength second only to Shoji Tokairin and is a motorcycle enthusiast, capable of high-risk maneuvers on both bikes and mopeds.
It is prominently labeled "NATSUMI" (in the Nihon-shiki transliteration system) before her first day at Bokuto in the beginning of the first anime, later re-coloured and re-labeled "POLICE" in the later appearances and on the Bandai Model kit of the Honda Today.
Not much information is revealed in the story, though she had lived in Asakusa before enrolling in the Metropolitan Police Department Academy and became classmates with Miyuki Kobayakawa before being dispatched elsewhere in the Greater Tokyo Area.
But for a short time, Natsumi was scouted by Tokyo Metropolitan Police Department Headquarters to be part of a prototype female motorbike unit before declining an invitation to train further with them.
[4] Natsumi and Miyuki, later on in the series, broke the back of a car smuggling syndicate that operated by stealing luxury vehicles, leading to the group's disbanding.
[5] During the Hachi-Ichi-Go crisis (Bee Number One in the dub of You're Under Arrest: The Movie), she and Miyuki proved themselves as law enforcers when they apprehended renegade police officer Tadashi Emoto as he tried to commit suicide by trying to jump from the top floors of the Tokyo Tower.
[6] At the end of the series, Natsumi is recruited to serve in the Special Assault Team and was an operative stationed with the Tokyo Metropolitan Police Department branch.
During situations where force was the only solution, Miyuki uses airsoft guns with paintball bullets in order to incapacitate or to leave a homing beacon on the opponents.
She had previously lived in the Okayama Prefecture before moving to the Greater Tokyo Area and entered the Metropolitan Police Department Academy and was classmates with Natsumi Tsujimoto before being transferred to Bokuto Station.
In the Hachi-Ichi-Go (蜂一号) crisis (Bee Number One in the dub of You're Under Arrest: The Movie), Miyuki's expertise in computers and in electronics have managed to gain breakwork during initial investigations over the mysterious power outages in the Sumida Ward, but was not able to secure any details regarding them.
Nearing the end of the movie, she and Natsumi apprehend renegade officer Tadashi Emoto after wounding Kachou as a means of "proving" that he acted alone throughout the crisis.
[11] Her partner is Saori Saga, who took over Natsumi's position after she was permanently stationed in the Tokyo Metropolitan Police Department branch as part of her duties as an SAT operative[8] before being transferred to the United States to conduct forensic training.
He is the only son of Daimaru Nakajima (who manages a motorbike shop called ZAPPER) and the stepson of his teenaged stepmom Sena Wakabayashi.
After reforming herself, Saori graduated from high school and studied in the Metropolitan Police Department Academy since she admired Natsumi and Miyuki for their hard work in the force and was assigned to Bokuto Station's Traffic Division.
First impressions portray Kaori as a fairly straightforward girl who isn't afraid to voice her concerns clearly, though she is as uncertain about her abilities as a police officer as Sakura, at least at first.
First impressions indicate that Sakura is a generally gentle and quiet girl, but dependable enough in a situation of crisis, even when she's underestimating her own abilities.
In the movie, he got in trouble with Superintendent Arizuka when he was linked to Emoto, who was suspected of starting the Hachi-Ichi-Go (Bee Number 1) crisis in the Greater Tokyo Area.
Voiced by: Takeshi Watabe (Japanese); Andrew Masset (English) Takao Arizuka (蟻塚 貴男, Arizuka Takao) is a superintendent from the Tokyo Metropolitan Police Department with the rank of Superintendent; he is feared by low-ranking officers since his mere presence in a police station during inspection would mean the end of someone's career as he always bring a notebook with him.
Voiced by: Yoshiko Sakakibara (Japanese); Shiela Brothers (English) Kaoruko Kinoshita (木下 薫子, Kinoshita Kaoruko) is an assistant inspector (警部補, keibuho) from the Tokyo Metropolitan Police Department who appears in the anime series near the end of the first series in a car theft case.
A strict, no-nonsense kind of person, she initially comes off as cold-hearted, but beneath that imposing demeanor is actually a woman who is selflessly dedicated to her duties and those that fall under her command.
Shouji is an expert in mountain climbing and rappelling and he uses his time in Bokuto Station to practice these two techniques (often a night, which once scared the other officers who believed him to be a ghost).
Shunsuke Okabayashi (岡林 俊介, Okabayashi Shunsuke) Voiced by: Takeshi Aono (Japanese); Marc Matney (English) Daimaru Nakajima (中嶋 大丸, Nakajima Daimaru) is Ken's father, and the owner of the ZAPPER motorbike shop in Sumida's Bokuto district, he is an old man who is an expert on motorcycles and was an excellent rider in his younger days.
Voiced by: Hiroko Konishi (1st Season)/Fumiko Orikasa (2nd Season) (Japanese), Ashley McDaid (English) Sena Wakabayashi (若林 瀬奈, Wakabayashi Sena) is introduced as a 20-year-old woman who owns a Lotus Super Seven racer vehicle, she was married to Daimaru after meeting him in a highway where she usually drives around[39] before being in love with him.
Voiced by: Hideyuki Hori (Japanese); Jason Hatfield (English) A costumed vigilante who calls himself a superhero, Strikeman (ストライク男, Sutoraiku Otoko) uses baseballs and related items to punish offenders such as public drunks, flashers, and parking violators.
He has come to the attention of Bokuto Precinct on several occasions, earning notoriety as a major nuisance and complete loon.
At one time during the 1st season, Nakajima was even suspected by his colleagues to be Strikeman, due to some events and a very similar appearance, but was found to be not the case.
When he tries to enact "proper justice" on the offender's property such as their cars, Strikeman uses baseballs with sharp spikes on them and in fact, has used them against Miyuki and Saori as a means of distraction.
To the annoyance of every Traffic Division officer in the Bokuto Precinct, she does so relentlessly and is perfectly willing to commit any traffic violation in order to get to the sales location faster, having proven herself just as aggressive on the road as Natsumi or Nakajima (except that she does it all the time) and counting on the reflexes of people or vehicles she was about to collide with rather than her skills in operating a scooter to avoid accidents.
However, another situation would intervene (such as repeating motorcycle thefts or bomb threats against a department store) whenever there's an attempt to apprehend her, allowing her to go off the hook.