Jiwon's life is built on deadlines, coffee, and color-coded Excel sheets. Heeseung's life is built on stage lights, perfect high notes, and being annoyingly perfect. When Jiwon gets assigned as the last-minute business intern for a top K-pop group, she's determined to keep it professional but the group's ACE boy has other plans. They argue over everything - timing, creative direction, even snack choices. But late-night editing sessions, stolen glances, and unexpected moments have a way of turning enemies into something dangerously more. In this battle of egos and banter... The real question isn't who's right. It's who falls first.

It was just a PR move. Until it wasn't. When dating rumors threaten Jake's reputation, the company spins a lie: his girlfriend is Soo-ah, the bubbly new videographer. But when pretend laughter starts feeling a little too warm, and his stares last a little too long... They both start asking: When did fake become fate?