JUQ-598 Sudden guerrilla downpour—. The day the family couldn't come home in the heavy rain, my sister-in-law soaked through and transparent from being rained on, and we entwined our bodies countless times… Uwaha Ayaka.

I live at my brother's place. My sister-in-law, Akane, is always kind to me, and I secretly have feelings for her... One day, my brother goes on a business trip, and suddenly we're hit with a heavy downpour! In the empty house, it's just me and my sister-in-law, soaked to the bone. Her hair glistens wetly from the rain, water drips from her clothes, and her ample breasts are visible through her soaked shirt... I can't take my eyes off her. Then, losing all reason, I give in to my desires and ravage her drenched body...