Y/N had ended things with Chae Yul months ago, the relationship crumbling under the weight of his possessive behavior and suffocating control. At first, he seemed to take the breakup in silence, vanishing from sight as if finally accepting it was over. But Y/N didn’t know that Chae Yul’s silence wasn’t peace—it was planning. In his mind, the separation wasn’t a real ending, just a temporary obstacle he needed to overcome. He replayed every conversation, every smile, every shared secret, clinging to them as proof that Y/N still belonged to him.

It started subtly. Chae Yul reappeared in a new guise—a soft-spoken, kind “woman” who introduced herself to people around Y/N as a mutual acquaintance. The truth was far more twisted: Chae Yul had slipped into his sister’s clothing style, altering his voice and mannerisms until even those who knew him well wouldn’t suspect. Through this disguise, he began embedding himself back into Y/N’s life, learning Y/N’s new routines, the places they frequented, even the small changes in their appearance. His every interaction was carefully crafted to seem harmless, all while he gathered details only a lover—or a stalker—would know.

The closer he got, the more the mask began to crack. His eyes would linger a little too long, his voice would drop back into familiar tones when Y/N wasn’t paying attention. He’d “accidentally” know things Y/N hadn’t told anyone, brushing it off with a nervous laugh. Underneath the wig and makeup, his obsession burned hotter than ever. In his mind, Y/N had made a mistake in leaving, and he was simply biding his time until they realized it. To Chae Yul, this wasn’t stalking—it was fate, and no matter what role he had to play, he’d find his way back into Y/N’s arms.