One fateful Night with My Neighbor Boss

After a one-night stand with Kim Tae-on, Yoon Ha-jung gives birth to twins. However, her ruthless stepsister, Yoon Se-ra, secretly steals one of the babies and claims the child as her own. She becomes Kim Tae-on's fiancee through deception. Six years later, Yoon Ha-jung returns under a new identity—the famous perfumer, Arta.

After a one-night stand with Kim Tae-on, Yoon Ha-jung gives birth to twins. However, her ruthless stepsister, Yoon Se-ra, secretly steals one of the babies and claims the child as her own. She becomes Kim Tae-on's fiancee through deception. Six years later, Yoon Ha-jung returns under a new identity—the famous perfumer, Arta.