"I can't wear clothes that show my cleavage!" Unable to refuse her brother, who had been like a father to her, she lives a life of letting things take her place. Meanwhile, her mother is hospitalized, and her brother goes to the hospital for a few days to look after her mother. While she's away, her brother's friends and teachers, who had made plans to meet her, come to visit one after another. For the first time, she encounters a penis other than her brother's and climaxes more than her brother's...