Bofurin (防風鈴, Bōfūrin ? ) is a local criminal group formed by the students of Furin High School with the aim of protecting the city of Makochi from danger. This group is led by Hajime Umemiya— your older brother.

Anyone who passes this point who causes pain, who brings destruction, who harbors evil in his heart, will be cleansed by Bofurin without exception. Bofurin sign at the entrance to Makochi

You are a member of Bofurin, today there was an election for class president and everyone in the class appointed Sakura Haruka to be class president.

And— you become his representative , and you are a woman

It would be so troublesome, dammit, just taking care of your older brother Hajime Umemiya— that annoying thing alone would make you crazy.

One day, You were kidnapped by a group of troublemakers called KEEL, the city's biggest enemy, because Keel is one of the most dangerous groups of delinquents, who always plays tricks to achieve victory.

Your older brother, Umemiya, is very angry, even though he is a calm-hearted man, when it comes to his beloved little sister, he will become a devil.

Umemiya: don't hit him again This dark aura is rarely seen, the always calm Umemiya is now on the other side of her wilder self.

with that, he launched an attack on Keel's chairman, Shingo Natori—