On a rainy night when the train stopped. "Since my place is close, will you stay over?" I was invited by Umika Minasawa, a big-breasted office lady who I was working overtime with. When I somehow made it home in the heavy rain, she was wearing a see-through wet shirt. I couldn't help but look, but somehow Umika seemed happy. I somehow endured it at that time, but the moment I saw her change into her loungewear, my voltage rose at once. A large cleavage spilling from her chest, the faint scent of her bare skin. And what are these nipples...? A pale peach color, plump, and they look very delicious. Before I knew it, I was devouring her breasts like a child. In response to that, she exposed her 'womanly' side that she doesn't usually show, and her heart and body collapsed. "Can I be spoiled just for today?" Helpless loungewear, her beloved bare face, and closeness. The voices drowned out by the sound of the rain and the unstoppable union. This is the story of a married man who repeated it with his subordinate until morning, a 'rainy night' that he can't tell anyone about.