The story The opening act
A freeter in his forties named Takemichi Hanagaki discovered one day that Hinata Tachibana and her younger brother Naoto had been killed by the Tokyo Manji Gang.
Both Hinata and Naoto belonged to the Tachibana family.
When Takemichi is pushed in front of a train, he is able to go back in time exactly twelve years to the year 2005.
While remembering his middle school days, Takemichi runs into Naoto and lets him know exactly when he and Hinata will die.
In a paradoxical turn of events, Takemichi is paradoxically returned to the present when they shake hands, allowing Naoto to continue living her life and pursuing her job as a detective.
Naoto has concluded that Takemichi goes backwards in time by 15 years each time they hold hands.
Takemichi has made up his decision to use the knowledge he has learned from the future to rescue Hinata.
Former Takemichi allies were forced to take part in clandestine combat organized by Kiyomasa, a member of the Tokyo Manji Gang.
Mikey, the leader of the gang, respects Takemichi for his unflinching dedication to guaranteeing their safety.
Takemichi discovers that Akkun, one of his other friends, was on the verge of being sent to jail until his most recent altercation with Mikey prevented it.
When Akkun commits himself out of fear, Takemichi learns that the Tokyo Manji Gang is a bigger threat to his friends than he first thought.
Takemichi learns via his time travel that the Tokyo Manji Gang and Moebius are at war in an effort to avenge Pah-companion.
Takemichi learns that Mikey’s eventual aggressive behavior is due to Draken, his second-in-command, passing away in the future.
Draken escapes the altercation unscathed, but Pah-chin, who had just stabbed Osanai of the Moebius gang, turns himself in to the police.
As a consequence, there are differences among the Tokyo Manji Gang over how to help Pah-chin in this circumstance.
Mikey and Draken’s dispute is successfully resolved by Takemichi, however on August 3, 2005, the Tokyo Manji Gang was assaulted by Moebius members under the direction of Valhalla member Shoji Hanma.
Takemichi learns that Peh-yan joined their plot after Mikey and Draken allowed Pah-chin to be imprisoned, and that Kiyomasa murdered Draken because Draken insulted him and made him leave the Tokyo Manji Gang.
Peh-yan imparts this knowledge to Takemichi.
The fight is won by the Tokyo Manji Gang, Takemichi defeats Kiyomasa, and Draken recovers completely from his injuries.
“Valhalla” and “Bloody Halloween” arcs
In this version of the story, Hinata and his companions continue to perish while Takemichi travels back in time.
Takemichi didn’t discover Tetta Kisaki’s role in the violent transformation of the Tokyo Manji Gang until he had traveled through time.
When he went back in time, he saw that Kisaki had just recently joined the gang and had used Pah’s absence to become the new leader of his division.
First division captain Keisuke Baji would also go for Valhalla after being persuaded to do so by Kazutora Hanemiya, a former Tokyo Manji Gang co-founder.
In order to keep his promise to Takemichi, Mikey will expel Kisaki from the group if he is successful in bringing Baji back.
Takemichi is now a recognized member of the Tokyo Manji Gang after being admitted into Takashi Mitsuya’s division.
Takemichi finds out that Mikey feels animosity against Kazutora since Shinichiro, Mikey’s older brother, passed away two years ago.
Chifuyu Matsuno also lets Takemichi know that Baji allegedly left the gang to investigate Kisaki’s actions.
He also learns that Mikey was supposed to be the head of Valhalla when it was founded by Kisaki and that the Tokyo Manji Gang would ultimately join Valhalla after a confrontation on October 31, 2005, commonly known as “Bloody Halloween.”
They were unsuccessful because Mikey murdered Kazutora as revenge for murdering Baji.