"Eikichi Onizuka" 22 years old was a famous runaway tribe in the local area when he was in high school. Onizuka will practice teaching to become a long-sought teacher. 　Onizuka was looking forward to the forbidden love with a high school girl as a teacher, but the class she was in charge of was a problem class with only bad things. Onizuka meets a beautiful girl named "Mizuki Nanako" there. At that time, Onizuka feels like he was invited to his room by chance. But, in fact, it was a trap set up by the bad guys.