This is the story of a bunch of good-for-nothing sextuplets, the Matsuno brothers, led by their eldest brother, Osomatsu. Despite each of the brothers being well into their 20s, they live at home and mooch off their parents, content to live as NEETs instead. In the rare occurrence that they try to look for employment, find a girlfriend or simply improve their social standings their unique personalities usually lead to their swift rejection - or grievous bodily harm.