The Younger Sister which cares for Elderly Sister on behalf of the parents who are busy with work. But the days when are absorbed in hamekko keeping inviting a man to the house. Look in it in secret; and honor ru Elderly Sister. Is approached in the room where Elderly Sister lies by a man and is hit from the back, and roll it up and is blamed with a toy; the convulsions top! The Elderly Sister that be gone into mischief during going to bed by the man that only the body of the Younger Sister is insufficient and be fired the mouth. The mating season comes in Elderly Sister influenced by Younger Sister, and hame is out of order with a delicate body!