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Takemichi Hanagaki has not been doing well in his part-time job; he finds out that the girl he used to date was killed; on his way home, he is pushed onto a train track; when he regains consciousness he realizes that he has traveled 12 years back.
Takemichi returns to the present after shaking hands with Naoto and is reunited with Naoto who is now a police officer; Naoto asks Takemichi to go back in time.
In order to protect his friend Yamamoto Takuya, Takemichi challenges Kiyomasa to a fight.
Takemichi enjoys some good times with Hinata back during their middle school days, but is suddenly sent back to the present.
Takemichi goes back into the past to find out what caused the dispute within the Manji Gang that led to splitting into factions and to save Draken.
The Tokyo Manji Gang wants to fight Moebius because he brutally attacked Pah-chin's friend; according to Naoto, Draken dies because of an internal conflict between the Tokyo Manji Gang.
Takemichi goes back to the past and tries to stop the upcoming conflict between the Tokyo Manji Gang and Moebius, but Mikey and Pah-chin refuse to change their minds.
Mikey and Draken are at odds after the Moebius attack; they visit an injured Takemichi; Takemichi gets angry when the two of them fight.
After receiving some information from Naoto, Takemichi goes to the parking lot where Draken is supposed to die.
The battle between Toman and Moebius led by their current leader, Hanma Shuji, rages on.
Takemichi battles Kiyomasa in a one-on-one, and with the help of Akkun and the others, they're able to protect Draken until they can get him to the ambulance; Hanma warns Mikey of the creation of Valhalla.
After saving Draken's life, Takemichi returns to the future to find that Akkun has caused chaos.
After Hinata's funeral, Takemichi tells a grieving Naoto what he plans to do next; Takemichi decides he wants to go see Draken and ask him himself, but they find out that he's no longer in Toman in this world and is on death row.
The Tokyo Manji Gang welcomes a new captain for their Third Division, and it happens to be the former member of Moebius, Kisaki; some members raise their doubts, but Mikey explains that they need Kisaki's strength to face their new threat, Valhalla.
Mikey asks Takemichi to bring the former First Division Captain Baji Keisuke from Valhalla, and they make a high-risk wager.
Two years ago, Mikey, Draken, Baji, Mitsuya, Pah-chin and Kazutora had their gang uniforms made, and they all took a trip to Kanagawa on their motorcycles; they got surrounded by a local biker gang, but Mikey shows no fear.
Takemichi finds out about Baji and Kazutora's past and realizes how hard it's going to be to bring Baji back to Toman.
Draken tells Takemichi that Kazutora ends up killing Baji at the Bloody Halloween, the fight against Toman and Valhalla, and Mikey ends up killing Kazutora; Takemichi goes back to the past to protect Baji so that this tragedy doesn't happen.
The bloody Halloween conflict begins; Hanma and his army of delinquents overwhelms Toman as Draken does his best; the Toman members see how desperately Takemichi is trying to save Baji and Mikey, lighting their fighting spirits once more.
During the Bloody Halloween, Mikey ends up in a 1v3 fight against Kagetora with his limbs bound; after Kazutora hits him in the head with a pipe, Mikey ends up on his knees.
After a fierce battle, Baji manages to get to Kisaki, but coughs up blood and falls to the ground.