It was a scorching hot summer day, and my family was staying at a relative's house for summer vacation. During that time, my aunt, Nanami, was helping me with my homework. Nanami was my mother's younger sister, much smarter than my mother... and above all, beautiful. Nanami treated me like a child, and she seemed somewhat unguarded, and I couldn't stop my heart racing, distracted by her slightly open neckline even while we were studying. Today, as usual, we were doing our homework alone when, due to sweat...