Rainy day, nipples slightly visible, real-life version, Yuhi Shitara, MIMK-191

The trigger for this was a rainy day... When I realized my uniform was transparent and the uncle had seen it, my heart clenched instantly. That thrill was unforgettable; as I showed myself to the uncle in the distance without underwear, my private parts trembled. "Am I doing something wrong?" "But being seen is exciting..." "Looking...I want..." Before I knew it, I was sharing shelter in the rain with a passing uncle and we were intertwined...