The story focuses on the misadventures of the "Campus Support Group" or "Sket-Dan", of Kaimei Gakuen, a club devoted to solving any and all problems brought to it by the staff or student body for the general improvement of campus life. Due to its general lack of meaningful assignments and unglamorous 'group of handymen' reputation the organization is treated with widespread contempt and it is composed of only three members. It's members are Bossun, the leader; Himeko, the blond girl with a kansai-accent; and bespectacled Switch, intellectual otaku. No matter what your problem may be, they will do their best to help you.
On paper, this sounds cool but the reality is that they usually just laze away in their clubroom. The occasional requests that they do receive are usually trivial matters such as searching for lost objects.