Mio, who teaches at a certain school in Tokyo, is a serious female teacher with a strong sense of justice.At a young age, she is the head of her grade and is well respected by her students and colleagues.One day, she witnesses a bad student, Kawagoe, enter a certain place while smoking a cigarette.The place was a crushed soapland where students who refuse to go to school and bad friends from Kawagoe hang out.Set in a ruined sex shop, the meat and semen of crazy delinquents attack beautiful teachers one after another!