A holiday that should be no different than usual. On the way home, Chaoyang sees a notebook on the road. "People who dropped it are in trouble..." From the moment Chaoyang picks up the notebook and delivers it to the address written on it, the gears of Chaoyang's life begin to go awry. To think that the owner of the notebook, Nozomi's mother, Nanami, will lead Chaoyang into a "forbidden" world where only women can enter...
