Takashi was hanging out at his friend Sogo's house when he noticed a stunningly beautiful woman he didn't recognize. She seemed too beautiful to be Sogo's older sister. The next day, Takashi went over to Sogo's place because Sogo had forgotten about their report due date. To his surprise, he encountered the same gorgeous woman again—this time, she flirted with him. As they talked, Takashi felt something hard beneath her skirt, leaving him shocked and aroused.