The main character of the story - Sasami - so inveterate hikikomori that will not find even on what to eat or change clothes. For the execution of all these and similar functions meets her brother - Kamiomi.This young man is not just considerate and responsible, by nature he is a born slave. Sasami deeply despises him for it, but without each other they can not do. Especially important for Szasz plays " fraternal surveillance device " - a video device installed on Kamiomi by which his sister was watching the outside world.And in this world one day appear beautiful Yagami sisters and Kamiomi is in their area of??special attention.