MIDA-428 Sudden heavy rain at the fireworks festival Nana Yagi rushes to share a room with her fianc

I went to a fireworks festival with a friend and happened to spot my teacher in a yukata, waiting for her boyfriend. It seemed like she was supposed to meet her boyfriend, but work commitments meant he couldn't make it, so she was heading home alone. Since I had a crush on her, I called out to her and invited her to join me at the fireworks festival. Wanting to make her happy, I took her to a special spot where she could see the beautiful fireworks, but it suddenly started raining heavily. Her yukata was visible through her...