I made an irreparable mistake. That day, I was driving around with my boss, Nao-senpai, when we were hit by a heavy rainstorm and were unable to move. We decided to take shelter in a vacant property, but as I watched her rain-soaked hair, her wet, see-through underwear, and the rainwater dripping from her suit, the feelings of admiration I had secretly harbored for Nao-senpai ran wild. Unable to suppress my desire, I embraced Nao-senpai, who was shivering from the cold...