Shibuya Baddest

During the battle between Toman and Valhalla on Bloody Halloween, before Baji could stab himself in order save Kazutora from the murderous wrath of Mikey.

Takemichi along with Toman and others suddenly got teleported into a high school.

But not any high school, a delinquency high school filled of the most notorious, craziest and fighting junkie delinquents known as the Demon School.

Yoiki High School, the baddest of Shibuya.

Because of their sudden appearance in their school, the high schoolers didn't like it along with leader of the school which Takemichi not only he find out that his girlfriend and Emma ended up there but also, he was somehow in the early 2020s.

Takemichi makes a risky deal with demonic ruler of Yoiki High School in order to stop Kisaki from controlling Toman or another delinquent high schools despite his time leap abilities not working, he relies on his foresight and makes an alliance with the fearsome and mysterious Demon Lord.

"They say that Kings are victorious but that's bullshit. The Queens are the ones who are wins and are victorious. So, Hero, what is that seek from the Demon Queen?"