Futaba, who has a quiet personality, got engaged after an office romance with a male colleague. Murase, the boss who envies the plain couple, appointed Futaba as the person to go on a business trip to the countryside... "Haa... my body... something's strange..." Her inability to refuse becomes her undoing, and her five senses are sharpened to an abnormal degree... "No! I'm going again..." Overwhelming pleasure she's never known before! Twitch, twitch! A fierce creampie inside every hole, with cum flowing out! A story of a serious office lady's vulgar, shameful one night stand.