A woman named Song Yoonjoo has achieved great success due to her hard work and determination. She has always been careful to avoid getting romantically involved with her coworkers, but her principles are put to the test when Koo Jaehee, a man she felt inexplicably drawn to after a chance encounter on the street, joins her team. Working alongside him closely, Yoonjoo finds herself falling for him, leading to an emotionally turbulent situation in their workplace.