Welcome to cromartie-high school your very fun high school where everybody is a delinquent.
gender anime manga comedy

Synopsis
Folks, meet Takashi Kamiyama. Enrolled at Cromartie High, where everybody is a delinquent, Kamiyama is apparently the only non-delinquent in the school. Logically, therefore, he must be the toughest in his class - by the rather twisted logic that only a really tough rabbit would lie down with lions. Thus begins a story that parodies every cliché of tough-guy anime that you've ever heard of, and some you haven't. Oh, and Freddie Mercury is in it, too.

if you wanna see what is this about first episode of it http://www.youtube.com/watch?v=Bm9R-XnHAhY

rules
no it not real delinquent group
no harassment
no trolling
no swearing