My first love came back... along with my ex-fiancé.

“It’s been a while, pretty.”

Just before her wedding, Yuju runs into her first love, Dogyung, who suddenly appears after nine years.
They broke up at twenty, and now at twenty-nine, he’s still the same — persistent, intense, and crazy.

“Just remember this — I’m Bang Geum. And I’ve bet everything I have on destroying your marriage.”

Yuju tries to push away Dogyung, who’s back to ruin her life all over again…
but Dogyung’s obsession and passion for her are beyond her understanding.