- Below is the official Hypnosis Mic timeline as seen in both official guidebooks, translated by slugtranslations.
20 years prior to the H Age
19 years prior to the H Age
- Rei becomes affiliated with the military’s Development and Engineering Department.
- Otome founds the Party of Words.
14 years prior to the H Age
- Otome and Rei meet.
13 years prior to the H Age
- World War III begins.
11 years prior to the H Age
- World War III ends, but armed conflicts continue.
- Rei leaves the military and independently forms a Hypnosis Mic development team.
- Hifumi and Doppo meet Honobono in high school.
6 years prior to the H Age
- Jakurai meets Yotsutsuji, a boy whose parents died in a car crash leaving him with no other relatives, and begins to raise him.
5 years prior to the H Age
4 years prior to the H Age
- Rei completes the Hypnosis Mic.
3 years prior to the H Age
- Otome purchases the Hypnosis Mic from Rei.
- The military finishes the Hypnosis Mic prototypes.
- Dotsuitare Hompo disbands.
- Rei begins developing the Hypnosis Canceler.
2 years prior to the H Age
- Hitoya takes on responsibility for a personal injury case Kuko caused.
- Rei completes the True Hypnosis Mic.
- Jyushi receives help for bullying from Hitoya.
- Ichijiku’s younger sister, Natsume, is murdered. Ichijiku meets Otome and joins the Party of Words.
- Jyuto questions Doppo for the police.
1 year prior to the H Age
- Ichiro and Kuko meet.
- Samatoki and Sasara meet.
- The Party of Words stages a coup d’état against the government.
- Rei completes the Hypnosis Canceler and gives the original Ramuda to Otome.
Year 1 of the H Age
- The H Act is passed, and fighting with weapons is eradicated.
- Rio, as a member of the government-supporting Special Annihilation Task Force, fights with the Party of Words. The Force is defeated, and its commanding officer Ansho Iojaku is taken captive.
- The Party of Words wins the battle against the government. The military is disbanded. The Party establishes Chuohku and distributes Hypnosis Mics to those interested.
- Ichiro and Kuko form Naughty Busters, a team under the control of Mozuku’s Stairway to Heaven.
- Samatoki and Sasara collect a group of delinquents and form Mad Comic Dialogue.
- Ramuda makes contact with Jakurai and Yotsutsuji. Ramuda and Jakurai form Kuujaku Posse.
- Mad Comic Dialogue and Naughty Busters rap battle one another. Afterwards, they team up to fight and win against Stairway to Heaven.
- Otome buys the True Hypnosis Mic from Rei.
- Mozuku’s crew takes Jiro, Saburo, and Nemu hostage in an act of terrorism. Samatoki and Ichiro meet Jyuto at the crime scene. Ichiro, Samatoki, Ramuda, and Jakurai work together to free the hostages.
- Ichiro and Kuko begin working with Mad Comic Dialogue.
Year 2 of the H Age
- A Ramuda clone brainwashes Kuko and Sasara. Kuko tells Ichiro their friendship is over and returns home to Nagoya. Sasara says the same to Samatoki and returns home to Osaka.
- Ichiro and Samatoki battle Kuujaku Posse. Afterwards, Ichiro, Samatoki, Ramuda, and Jakurai form The Dirty Dawg.
- The Dirty Dawg conquers Japan. A Ramuda clone places Yotsutsuji into a coma.
- A Ramuda clone brainwashes Nemu, who then joins the Party of Words.
- Jiro, Saburo, and Nemu are taken hostage, and Ichiro and Samatoki fight over them. Jakurai fights Ramuda over Yotsutsuji. The Dirty Dawg disbands.
- The Party of Words destroys the distributed Hypnosis Mics; at this point, they can no longer be used.
- It is decided that the Party will hold the Division Rap Battle.
- Jakurai and Doppo meet.
- Jyuto and Rio meet.
Year 3 of the H Age
- Ichiro, Samatoki, Ramuda, and Jakurai receive microphones from Chuohku.
- Ichiro accepts Jiro and Saburo as members of the Buster Bros!!!
- Samatoki and Jyuto accept Rio as a member of MAD TRIGGER CREW.
- Jakurai accepts Hifumi and Doppo as members of Matenro.
- Ramuda accepts Gentaro and Dice as members of Fling Posse.
- Each division’s preliminary battles begin. Buster Bros!!!, MAD TRIGGER CREW, Fling Posse, and Matenro advance to the championships.
- Ichijiku first uses the Hypnosis Canceller to stop fighting breaking out before the gates of Chuohku.
- The night before the tournament, Jiro and Saburo battle Jyuto and Rio while Gentaro and Dice battle Hifumi and Doppo.
- The finals tournament is held. Sasara, Kuko, and Hitoya are invited to spectate this match as an example.
- MAD TRIGGER CREW wins the first match against Buster Bros!!!.
- Matenro wins the second match against Fling Posse.
- Matenro wins the championship match against MAD TRIGGER CREW.
- Hitaki instructs the Tobari brothers to distribute the drug Grasshopper.
- Hitaki and the Tobari brothers attempt to catch Buster Bros!!!, MAD TRIGGER CREW, Fling Posse, and Matenro in a trap but are defeated.
- Hitaki is purged from the Party by Ichijiku.
- Sasara and Kuko receive Hypnosis Mics from Chuohku.
- Nemu meets Honobono.
- Rei makes contact with Sasara and Rosho. They form Dotsuitare Hompo.
- Jyushi begins training under Kuko. They and Hitoya form Bad Ass Temple.
- Ichiro goes to Osaka and meets Sasara and Rosho. Simultaneously, Rei makes contact with Jiro and Saburo. He tells them that he is their father and that Ichiro has lied to them.
- Nemu reunites with Samatoki.
- Nemu confronts Samatoki as a changed person. Ramuda appears and tells Samatoki that he brainwashed Nemu.
- Gentaro and Dice learn that Ramuda is a clone.
- The Party of Words uses Yotsutsuji as leverage in order to compel Jakurai to work with them. Jakurai reunites with Hitoya. Meanwhile, Kuko and Jyushi make contact with Hifumi and Doppo.
- Chuohku decides to have Ramuda killed. Honobono enlists the Word Wreckers to join her in hunting him down. Gentaro and Dice come to his rescue and spirit him away to safety, but now all three are wanted as outlaws.
- Dice performs a trade with Otome, giving her the Chuohku expose left behind by Gentaro's older brother. Ramuda is allowed to go free, and Fling Posse is granted permission to participate in the second DRB.
- Jakurai agrees to cooperate with Chuohku under certain conditions. Honobono pays a visit to Hifumi's club.
- Jyuto arrests Sekirei Hanmyou, the man responsible for the drug that led to Jyuto's friend and parents' deaths.
- Nemu arrests Tsumabira, now escaped from prison, and her coconspirator in crime Misago Haebaru. Honobono rises to position of Vice Director General of the Criminal Bureau in Tsumabira's place.
- Ichiro battles Jiro while Saburo battles Rei. The brothers make up afterward.
- After receiving advice from Rei, Sasara and Rosho battle one another and come clean about their feelings. With that bad blood washed away, the team comes together stronger than ever.
- Jyushi comes face to face with the boy who bullied him and took his grandmother's life. Through his own fortitude, Jyushi prevails through the mental distress. After talking with Kuko, Hitoya lets go of the past in seeking revenge for the death of his brother. The team comes together stronger than ever.
- The second DRB preliminaries come to an end. Buster Bros!!!, MAD TRIGGER CREW, Fling Posse, Matenro, Dotsuitare Hompo, and Bad Ass Temple advance to the finals.
- In the second DRB tournament, Buster Bros!!! win round 1 against Dotsuitare Hompo.
- In the second DRB tournament, Matenro wins round 2 against Bad Ass Temple.
- In the second DRB tournament, Fling Posse wins round 3 against MAD TRIGGER CREW.
- In the second DRB tournament, Fling Posse wins the final match against the Buster Bros and Matenro, thus claiming the championship.
- Sasara and Kuko learn that they were brainwashed. Ramuda opens up to Jakurai and tells him the truth. Ichiro and Samatoki learn the truth as well, thereby resolving the feuds between the team leaders.
- The Party of Words announces the third DRB.
- The Party of Words locates and seizes control of Rei's laboratory. In an exchange of hostages, the Party gains control of the True Hypnosis Mic and Ramuda clones.
- Otome announces plans for world domination before Rei attempts a coup d'tat. All Hypnosis Mics are disabled, and Otome and Ichijiku are sent to maximum security prison by the very Ramuda clones Rei created.
- Public order breaks down following the disabling of the mics.
- Ichiro discovers Rei's connection to the Hypnosis Mics due to Gentaro's brother's expose. The main cast, led by Jiro and Saburo, hold a music festival to bring courage to everyone struggling with the political turmoil.
- Honobono frees the inmates of Chuohku's maximum security prison. After staging an attack on the music festival, she disappears from the eye of Chuohku.
- Rei and Ichiro have a fistfight over their respective moral positions. Rei acknowledges his defeat, reconsiders his moral stance, and reactivates all Hypnosis Mics.
- Armed with a working mic once more, Nemu takes command and restores order within Chuohku. Otome decides to step down from her position in government.