Introduction: As a result of a combination of various misfortunes, Shiki ended up attending a famous delinquent school――St. Lukimantz Academy.Shiki was a herbivore thrown into the cage of a predator called ‘Delinquents’.He himself was not the type of boy who would be bullied, and in fact, until junior high school, he had lived a life free from bullying.However, his sense of justice and more-than-slightly good-natured personality led him to be noticed by one of the many gangs of delinquents in the school.For a year after that, Shiki was bullied by the delinquents and lived a hellish life.One day, he almost collided with the strongest Yankee gal in the school, Karin Kohinata, called the [Empress] in front of a vending machine.As a result, Shiki’s school life changes drastically....