Upon returning to my hometown, I reached out to my ex-girlfriend, whom I hadn't seen in four years. Her name is Tsukasa Aoi, a well-known and popular AV actress. I wanted to confirm my love for her before proposing marriage tomorrow. As if taking advantage of my eagerness, Tsukasa relentlessly pursues me. Even if we cross the line, it's not adultery. Knowing this, the thrill of forbidden love is intoxicating. In this intense, borderline situation that continues even into the morning, my sexual desires and moral compass are both shattered...