Tetsuya who returns home to the parents' house whom a company is dismissed, and the older brother waits for after an interval of several years. It is an older brother and a niece I arrive at the parents' house, and to have met. Be surprised to watch the figure of the niece of the So. The small, young niece grew up magnificently, and completely became "a woman". However, the manner to contact with Tetsuya says, "I will take a bath together" even if it becomes big without anything changing, and be at a loss because I say, "I will sleep together".
