They are the strongest gang of bad guys.

And the hero of the village.

The grades are the lowest, but the fighting is the best.
Huolin High School is notorious for being a delinquent school.
Haruka Sakura, a first-year student at Huurin High School who came to stand at the top of the school, finds out that Huurin High School has become a group that protects the town under the name of "Bohuurin."
And Sakura begins to fight to protect the village as a member of Huurin...!