ChunYeJu

One night, LS Corp intern Han Ji Eun gets drunk and has a one-night stand with the company's CEO, Bae Seo Jun. She flees in panic but accidentally leaves behind her friend Oh Yun Ju's resume. Seizing the opportunity, Yun Ju takes her place to stay by Seo Jun's side, while Ji Eun becomes his secretary due to her plain appearance. As Seo Jun grows suspicious, Yun Ju schemes against Ji Eun to keep the secret hidden.

Orphaned, Nam Yujin grows up with the three Nam brothers, with the promise that one of them will marry her on her coming-of-age. But upon the return of their true sister Nam Sua, Nam Yujin loses their love and sinks into desperation. Even when she marries her suitor Ha Jihoon, they deem her as attention-seeking and only regret after unveiling Nam Sua's true colors—but Nam Yujin is never coming back.

Orphaned, Nam Yujin grows up with the three Nam brothers, with the promise that one of them will marry her on her coming-of-age. But upon the return of their true sister Nam Sua, Nam Yujin loses their love and sinks into desperation. Even when she marries her suitor Ha Jihoon, they deem her as attention-seeking and only regret after unveiling Nam Sua's true colors—but Nam Yujin is never coming back.