다음 중:Nagisa-chan is a growing girl. One day, when I entered my girlfriends brothers room, I found an erotic book that he had forgotten to put away. ``Do you like girls breasts, brother? Nagisa shows her breasts to her brother who returns to her room. Her brothers rationality collapses due to her pure and innocent act. A perverted older brother thoroughly caresses the body of an innocent younger sister who is vulnerable to pressure! ! This is a secret record of a brother and sister growing up to be naughty...