Futaba, who has a quiet personality, is engaged to a male colleague after having an in-house romance. Murase, the boss who is jealous of a sober couple, appointed Futaba as a person to go on a business trip to a rural area ... "Oh ... my body ... something strange ..." "No! I'm going to do it again ..." Overwhelming pleasure to know for the first time! Bikubiku! It's in the midst of a fierce Kimeseku where Iki juice drips from a hole called a hole! A story of a night when a serious office lady was stubborn and not vulgar.