Futaba, who has a quiet personality, got engaged to a male colleague after having a romance at home. Murase, the boss jealous of a sober couple, assigned Futaba as a business trip to a rural area … “Oh … my body … something strange …” “No! I I would do it again … “For the first time knowing extreme happiness! Bikubiku! It is in the middle of a fierce Kimeseku, where Iki water flows out from a hole called a hole! The story is about one night of a serious, stubborn office worker without vulgarity.