We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Just after the second division battle ends, a string of ordinary citizens go on the rampage. On top of that, there's a hostage situation at a hotel in Ikebukuro. The objective: revenge against the Buster Bros!!! Ichiro, Jiro, and Saburo dash to the scene!

Ichiro and the others head to Osaka Bay to dismantle the bombs at the theme park where TBH announced they're holding an Underground Division Rap Battle.

TBH dancers Kiaro and Skuro appear before Ichiro and Kuko. Ichiro says that he's sure they're people he used to know, but the dancers don't remember it. Meanwhile, when Matenro and Fling Posse arrive in their arena, they're ambushed by assassins.

TBH appears again before Ichiro and the others. They say that if they're beaten in a rap battle, they'll spill everything they know. Ichiro, Samatoki, Ramuda, Jakurai, Kuko, and Sasara accept the challenge. After the battle, the mastermind is revealed.

Everyone who fell into Kaibyakumon's trap divide into groups and head out via three helicopters. Ichiro and the others agree to help suppress the rioters in Tokyo. The six members in the third helicopter head to Shibuya to confront Chiaro.

The six leaders head to the former site of Beginning Gate where they find Kaibyakumon waiting for them. Kaibyakumon transforms into a monster using hundreds of drones and overwhelms the six leaders with a rap overflowing with rage and despair.