Mizuki, a female boss, is jealous of her newly married subordinate Hashimoto. In an attempt to upset his married life, she ends up having sex with Hashimoto. She thought it was just a whim, but she discovered that he is the best sex partner ever. The two of them are so into each other's bodies that they are more compatible than their partners, and their bodies start to ache even while they are at work. As soon as they punch the time card, their underwear gets soaked with love juices, and they can't stop a tent from forming in their suits. And the moment the clock strikes the end of the day... a secret internal creampie project begins!