The Villain Seduces the Protagonist

Seo Sejun led a life that—though far from perfect—was at least his own.
Until the day he heard a voice.

“I really wanted to pair Dogyeong and Sejun…”
“That damn producer… what a shame…”

Confused, he quickly discovers a truth that shatters his reality: he is merely a character in a fantasy novel—and not just any character, but a secondary villain in a story titled *The Genius Hunter Smashes the Dungeons*.
But that’s only the beginning of his troubles.
It turns out that the story was originally supposed to unfold completely differently—as a BL romance in which he and the main character, Cha Dogyeong, were meant to become a couple.
And now… someone wants to fix that.
Trapped in a system that imposes tasks on him, Sejun is given an absurd mission: to fulfill the author’s unfulfilled wish.
In other words—
he is to seduce Cha Dogyeong.
The very same Cha Dogyeong with whom he has always shared nothing but hostility, rivalry, and a mutual desire to destroy one another.
Changing the script, however, is not as simple as it might seem.
Every forced glance, every unnatural gesture, every attempt at closeness only deepens the tension between them. The line between hatred and something far more dangerous begins to blur.
Because what if the story that was supposed to be rewritten… starts writing itself?
And what if the feelings that were supposed to be just part of the “mission”… stop being fake?
In a world full of dungeons, monsters, and the struggle for survival, the hardest challenge might turn out to be something completely different—
understanding the other person.
And oneself.