I made an irreparable mistake. On this day, I was in the car with my boss, Nao-senpai, and was unable to move as I was hit by a violent storm. Then she decided to take shelter from the rain at an empty property, but as she watched the rainbow wet hair... wet and see-through underwear... and the rainwater dripping from her suit, her admiration for Nao-senpai, whom she had secretly held, went out of control. I can't control my desires, so I hug Nao-senpai's body, trembling in the cold...