On July 1, 2017, Takemichi Hanagaki learns via the news that internal conflict within the Tokyo Manji gang caused civilian deaths, including his middle school girlfriend, Hinata Tachibana, and her younger brother, Naoto Tachibana. Three days later, Takemichi gets pushed onto active train tracks. As a train approaches him, Takemichi remembers Hinata and awakens twelve years back in the past on July 4, 2005. Reunited with his middle school friends, Takemichi recalls their fight with third-year mid
Takemichi agrees to help Naoto save Hinata. Naoto explains that Takemichi's ability allows him to leap exactly twelve years to the day into the past, triggered by a handshake between them. For two sleepless days, Naoto briefs him on the Tokyo Manji gang's history, including classified details obtained by his murdered investigator predecessor, whose death was recorded during an undercover operation. Naoto believes the gang's current circumstances began when its top leaders, Manjiro "Mikey" Sano a
Determined to stop being his lackey, Takemichi challenges Kiyomasa. Though hopelessly outmatched, he refuses to yield, declaring Kiyomasa will have to kill him to win. As Kiyomasa prepares to bring out his bat, the Tokyo Manji gang's leaders arrive: vice-commander Ken "Draken" Ryuguji and commander Manjiro "Mikey" Sano. Mikey casually beats Kiyomasa down for disgracing the gang's reputation with his fighting ring and unexpectedly declares Takemichi his friend, impressed by his resolve. Though Ta
After going out shopping together, Hinata invites Takemichi over to her home for studying. She thanks him for saving Naoto from bullies a week ago, who now dreams of becoming a police officer like their father. While watching fireworks together on the rooftop, Takemichi attempts to hold Hinata's hand but inadvertently grabs Naoto's, triggering his return back to the present. Naoto verifies the rules of Takemichi's time leaps: whatever time he spends in the past passes equally in the present and
Takemichi discovers he has been fired after disappearing for two weeks during his time leap. Later, Naoto reveals to Takemichi the next crucial event: on August 3, 2005, Draken dies after being stabbed during a massive gang brawl involving the Tokyo Manji gang. Believing Draken's survival will prevent Mikey from changing and corrupting Toman, Takemichi leaps back into the past. Takemichi awakens in a karaoke room with Emma Sano, startling him as he runs away and coincidently encounters Hinata ou
A flashback reveals Ken's harsh childhood in a red-light district, abandoned by his prostitute mother and forced to grow strong alone. Nicknamed "Draken", he gained notoriety in elementary school through constant fighting. One day, a gang orders Draken to bring Mikey to them. Draken expects a formidable-looking opponent, but instead meets a small, carefree kid. Despite his appearance, Mikey effortlessly defeats the local gang's leader, Sameyama, and asks Draken to be his friend, forming the foun
Takemichi is shocked to see how different Osanai is from his present counterpart. Osanai strikes Takemichi for looking down on him before Pah-chin steps in to face the gang leader. Mikey orders everyone to stand back, insisting it is Pah-chin's fight. Despite his determination, Pah-chin is effortlessly overpowered. Before he collapses, Mikey catches Pah-chin, assuring him he has not lost. As Moebius mocks them, Mikey steps forward and knocks Osanai out with a single kick. Draken stops Osanai whe
Takemichi pleads with Mikey and Draken to not tear Toman apart with their actions. However, they begin to laugh at Takemichi after it is discovered he has dog poop in his hair from falling into trash. After cleaning himself up, Takemichi reunites with the pair and learns they have made up. Takemichi deduces it was over Pah-chin, with Mikey wanting to help him evade jail and Draken respecting his decision for wanting to be punished for his actions. Relieved, Takemichi now believes he has changed
While searching for Draken, Mitsuya explains that Peh-yan believes Toman betrayed Pah-chin and has joined forces with Moebius members to target Draken. As Draken prepares to confront Peh-yan, he is suddenly struck from behind with a bat. Remembering Naoto's newspaper regarding the parking lot incident, Takemichi rushes there and discovers Draken overwhelmed by enemies. Exhausted, Draken entrusts the situation to Mitsuya as Mikey arrives, who deduces he was lured away from the festival to create
Takemichi quickly alerts Mikey that Draken has been stabbed, but Hanma blocks Mikey's path towards them. Unable to reach Draken, Mikey entrusts Takemichi with saving his life. Realizing Draken is still breathing, Takemichi carries him towards safety as Hinata and Emma confirm an ambulance is on its way. Before help arrives, Kiyomasa and his gang confront Takemichi in a nearby alley. Though Draken urges him to flee with the others, Takemichi refuses, determined not to run away again after a lifet
Kiyomasa's gang flees, leaving him behind. Hinata and Emma guide the medics towards Takemichi and Draken, who are rushed to the hospital. Meanwhile, Toman defeats Moebius, leaving only Mikey and Hanma straggling. Hanma retreats before the police can arrive, ominously announcing the rise of Valhalla. Inside the ambulance, Draken thanks Takemichi but suddenly goes into cardiac arrest, forcing the medics to perform CPR. At the hospital, everyone waits anxiously until the surgery succeeds and Draken
While reconnecting with Hinata, Takemichi learns that he broke up with her sometime in the past. After he leaves her in the car, he runs into Hanma and sees Akkun drive a van into Hinata's car, fatally injuring the both of them. Takemichi professes his love to Hinata before she dies and subsequently pronounces that he will go back in time once more and become the leader of Tokyo Manji Gang so that she can live.
Following Hinata's funeral, Naoto and Takemichi deduce that Akkun was most likely blackmailed into killing Hinata, as his wife and children have gone missing. They discover that Draken is on death row for murder. They visit Draken in prison, where he confesses that his biggest regret in life is not killing Kisaki when he had the chance. Takemichi travels back into the past once more, where Mikey announces that the Tokyo Manji Gang is nominating a new third division captain at their next meeting.
Kisaki, a former member of Moebius, is appointed as the new captain of the third division. Takemichi retaliates by attacking him, but first division captain Keisuke Baji beats him down for disrespecting Mikey's decision. Shortly after he does so, Baji announces that he is quitting to join Valhalla. Once Takemichi regains consciousness, he begs Mikey to expel Kisaki from the Tokyo Manji Gang. Mikey agrees under the condition that Takemichi can get Baji to return. Mikey makes Takemichi an official
At school, Takemichi is visited by Valhalla member Kazutora Hanemiya, who brings him to his gang's base as a witness for Baji's initiation. Takemichi finds Baji brutally beating his vice captain, Chifuyu Matsuno, which officially grants him membership into Valhalla. Takemichi unsuccessfully tries to convince Baji to return, but Baji only promises to aid Kazutora in his mission to kill Mikey and begins to reveal their past.
In 2003, the Tokyo Manji Gang are founded by Mikey, Draken, Mitsuya, Pah-chin, Baji, and Kazutora. Kazutora convinces Baji to help him steal a motorbike for Mikey's birthday. During their heist, Baji realizes too late that the shop is owned by Mikey's older brother, Shinichiro, who Kazutora impulsively bludgeons to death. As he and Baji are arrested, a guilt-ridden Kazutora enters a catatonic state and reasons that the incident is Mikey's fault, therefore he must kill Mikey.
On behalf of Valhalla, Hanma challenges the Tokyo Manji Gang to a fight. The next day, Takemichi meets Chifuyu, who tells him that Baji joined Valhalla to expose Kisaki. The two meet with Osanai, who reveals that Kisaki orchestrated the fight with Moebius on August 3. Together, the two suspect that Kisaki is the true leader of Valhalla. Takemichi returns to the present and lets Naoto take him to meet Draken in prison to confirm this. Instead, Draken confesses that Mikey is the leader of Valhalla
Draken explains that Kazutora killed Baji during their gang war on October 31, 2005, known as Bloody Halloween. Mikey had killed him out of rage, which led to the Tokyo Manji Gang to lose the fight. As a result, the gang was absorbed into Valhalla, which subsequently became a crime organization, with Mikey and Kisaki acting as its leaders. Takemichi returns to the past to confront Baji with Chifuyu, but Baji swears his loyalty to Valhalla. Takemichi later admits to Mikey he is unable to fulfill
The battle between Valhalla and the Tokyo Manji Gang begins. As the Tokyo Manji Gang are defeated, several members begin losing hope until Takemichi boosts their morale with his determination. Kazutora lures Mikey to a pile of scrapped vehicles and has two Valhalla members pin him down as he strikes him with a metal pipe. During this time, Kazutora's abusive childhood, which led his black-and-white morality, is revealed. However, Mikey breaks free and defeats the Valhalla members, Kazutora inclu
Mikey collapses from exhaustion, but before the other Valhalla members attack, Kisaki intervenes with his division. He gains the approval of the other Tokyo Manji Gang members, except for Takemichi, who realizes this action had been planned. However, Baji targets Kisaki. Takemichi attempts to hold Baji back, but just as he recalls that it was Kazutora who killed Baji, Kazutora stabs him. Baji convinces Takemichi that wound is shallow and fights his way to Kisaki, but just as he reaches him, he s
Mikey loses interest in the fight and declares it to be over after defeating Hanma. He begins to brutally beat Kazutora. In the middle of this, Baji approaches Mikey and Kazutora and stabs himself to absolve Kazutora the responsibility of his death. As Baji dies, he tells Takemichi and Chifuyu that he faked his betrayal to investigate Kisaki, who had bargained a deal with Mikey to be appointed as the third division captain in exchange for expediting Pah-chin's release. Takemichi attempts to stop
Mikey recalls on June 19, 2003, Baji created the Tokyo Manji Gang to protect Kazutora from the Black Dragons and realizes that Baji wanted him to forgive Kazutora. Afterwards, the Tokyo Manji Gang and Valhalla disperse upon the arrival of the police, but Kazutora apologizes to Mikey and stays behind with Baji's body to turn himself in. Later, Chifuyu visits Baji's grave and recalls how they had become friends after Baji saved him from a gang. Takemichi and Draken then visit Kazutora in juvenile
Draken takes Takemichi to a brothel where he was raised and thanks for stopping Mikey from killing Kazutora. Later, Takemichi, Hinata, and Naoto believe Emma and Mikey are dating but later learn from Draken that the two are half-siblings. Mitsuya creates Takemichi's gang uniform in gratitude, and Takemichi later attends the Tokyo Manji Gang's meeting as a formal member. Mikey appears with both Hanma and Chifuyu to make an important announcement.
Mikey announces that the Tokyo Manji Gang and Valhalla will merge, with Hanma as the captain of the newly created sixth division. Kisaki is celebrated as their savior, and Chifuyu nominates Takemichi to become the first division captain. Takemichi returns to the present and finds himself as a high-level executive member. With Mikey and Mitsuya missing and Draken executed, Kisaki is now the leader in Mikey's absence. During the executives' meeting, he announces that the Tokyo Manji Gang has been
Back in the present, Takemichi is stunned to learn that he has become officer in Toman. Kisaki seizes an opportunity to dupe him, and Takemichi finds himself staring down the barrel of a gun.
Back in the past, Takemichi meets Hakkai and Yuzuha Shiba and forms a friendly bond. On the way to the Shiba's home, a chance meeting with Black Dragon turns violent.
Takemichi is beaten to a pulp by Taiju Shiba. In order to save Takemichi, Hakkai proposes a bargain to Taiju.
Disaster is avoided when Hakkai offers to join Black Dragon. However, Mitsuya will not allow Hakkai to leave Toman, and confronts Taiju.
Kisaki and Hanma offer their help to Takemichi and Chifuyu in the rescue of Hakkai and destroying Black Dragon. Takemichi and Chifuyu come to a decision.
Propelled by each their own motives, the alliance members head to the church on Christmas night.