FTHT-338 If the panties get stained, you’re out immediately! Women participating as monitors for a certain underwear manufacturer earn a reward if they can endure relentless pressure in an M-shaped position!!! How many will make it through!? [Streaming Exclusive Vol. 1]

Women who applied for a monitor recruitment campaign that simply asked them to wear a new product from a certain underwear manufacturer. The test itself was straightforward: wear the new item, which was claimed to never show stains, and prove its effectiveness. However, even the underwear that was said to never get wet ended up showing marks. Furious that the situation had turned into negative publicity, the men from the manufacturer decided to provide compensation in exchange for a special intimate favor. Will any of the women be able to safely receive the reward? [Streaming Exclusive Vol. 1]