'Typhoon' made a name for fighting in middle school.  He decided to forget the past and live a quiet life, but his resolve crumbles when he collides with school officials.  Meanwhile, 'Sang-min', who stands at the forefront of the Iljin group and leads it, and 'Ik-jun', a gangster who controls it from behind.  The 'Sang-min' gang and gangster senior 'Ik-jun' and gangster extort money by blackmailing male customers who want to use female students to have an aid relationship.  'Typhoon', who does not join the school Iljin, runs into conflicts with the Sangmin and gang, and the two of them are in a situation of improvisation...