Sket Dance

is a manga series written and illustrated by Kenta Shinohara which has been serialized in Weekly Shōnen Jump since 2006. An anime adaptation began on April 7, 2011 and ended on September 27, 2012 with a total of 77 episodes. On April 7, 2011 and at 3AM Pacific Time, Crunchyroll streams the anime for the following territories: US, Canada, United Kingdom, Ireland, Australia, New Zealand, Denmark, Finland, Iceland, Netherlands, Norway and Sweden. (Free members are able to view it one week after simulcast date) The manga series ended in volume 32 that was released in August 2, 2013.

Plot
"Worries, troubles, no matter what, tell us!! We will become your helpers!!" Follows the adventures of the Sket Dan trio who help out their fellow classmates. Can they get the job done without getting into trouble?

Official

 * Sket Dance's Official Website

Other Sources

 * Anime News Network (Anime)
 * Anime News Network (Manga)
 * Wikipedia