The lady next door likes see-through underwear.

Mayumi works as an office worker, but also works as a side job to buy underwear online. The next item is see-through underwear, and although I was at a loss as to how to sell it, when I tried it on, I felt suspicious and comforted myself... One day, Mayumi is soaked wet by the sudden rain. Of course, the see-through underwear that came with them was also visible... When I happened to see this, my neighbor, Isejima, was stubbornly attached to its transparency! Involuntarily, he brought Mayumi to his room...