Even after graduating from junior high, the useless younger brother who has never held a steady job and just lounges around at home is spoiled by his sister Shizuka. He's already been given up on by their parents, lacks any ability to live independently, and doesn't even have a girlfriend. Despite this, his devoted sister continues to take care of him, even handling the most menial tasks, and still affirms him... All of it is for her brother... What is the true purpose behind this abnormal supportive love?
