We went to the fireworks festival with three childhood friends. On our way back, it suddenly started pouring rain, and one of us got separated from the group, leaving just me and Natsu together. Natsu is a bit childish and has been like a little sister since we were kids, but lately she's started acting more girly, making me strangely aware of her. The yukata, soaked by the rain, reveals underwear underneath. For some reason, it suddenly looks sexy, and I can't stop my heart from racing at Natsu's unusual expression. The rain is getting heavier, so we rush into a love hotel. We were never supposed to cross the line, but this heavy rain drove us crazy for one night.
