I reunited with my older sister, who I thought was married, at my parents' house that I visited after several years... On a midsummer night in a rural town with nothing going on, I happened to witness my sister masturbating. "My orders are absolute!" Memories of being toyed with by my tomboyish sister come flooding back. She provokes and seduces me, ignoring my confusion. My frustrated older sister, who has returned, attacks me, suppressing the leaking sighs and leaving the dripping sweat as it is, arching her heated body and exploiting everything I have...