Yuna works as a receptionist at the company where her husband works. One night, two people who are popular in the company as a mandarin couple apply a reputable aphrodisiac to their crotch and have sex. The aphrodisiac doesn't fit Yuna's crotch, so her doctor tells her not to wear her underwear... The next day, Yuna goes to work wearing no panties because she can't take a day off from her work. Meanwhile, a certain customer visits the company. At that time, there is no way to know that Yuna, who is wearing no panties, will be involved in the disturbance caused by the guest.
