Kyo Kara Ore wa!!

Two transfer students, Mitsuhashi Takashi and Itou Shinji, tired of their boring normal life and unpopularity decide to take their arrival at a new school as an opportunity to reinvent their image, and become delinquents! Itou's justice clashing with Mitsuhashi's mischievous ways, they initially antagonize one another but soon become fast friends. The delinquent duo set out on various misadventures to become the greatest delinquents in all Japan!
(Source: MyAnimeList)
~~ Adapted from the manga series "Kyo Kara Ore wa!!" (今日から俺は!!) by Nishimori Hiroyuki (西森博之).