One day, Rena, who lives with her younger brother, was called to the president's house by the president of her younger brother's place of work! - Apparently her brother embezzled the company's money. - If this continues, my brother will be arrested for business embezzlement. - In order to protect her younger brother, as the name suggests, her older sister was forced to give up. - She is taken to a Japanese-style room and ordered to masturbate by the president. - She was made to masturbate in public, and although it is embarrassing, Rena who has become comfortable. - In front of her, she is presented with an erect cock by Gingin. - To her who has transformed into her obscene female, she gets lucky from behind. - She changes the bathroom, the sofa, the bed and the situation, and is disturbed by her desires. - Her older sister, who hated it at first, gradually drowns in pleasure. - . - Please enjoy the naughty sister to the fullest!