Daisuke

an excellent compact low budget school action movie about bullying in korean schools 、
it makes its point in 80 minutes where similar movies or dramas take much longer。
it's main strength is its realism、 the low budget and noir filming actually contribute much to the realism I think、 as also how the bullying starts from seniors down、 the slight female and parent involvement is more true to life and it helps the actors actually look as though they are school boys not twenty or thirty year olds in school uniform。
it even manages to show the impotence of teachers in schools where adult discipline is absent and a law of the jungle where students substitute their own power structure and gangster discipline of survival of the strongest [interesting it includes a corporal punishment episode with seniors beating their juniors like the teachers previously did、 ironic students see this is needed where "enlightened" adults abolish it]。
the hesitation of the main protagonist to fight against students from stronger age group is convincing、 unlike some other fight dramas where the fighting skills of the heroes require much suspension of disbelief。