Synopsis：One day, the sole heir of a wealthy family, Ki Seungho, the president of DA Entertainment, was mysteriously killed in his office. His secretary, Lee Yeonwoo, became the only suspect. The world refused to believe her innocence, and she was ultimately sentenced to death. “If only I had one more chance…” Perhaps that desperate wish at the brink of death was heard, because when Yeonwoo opened her eyes again, she had returned to one month before the murder. As if to warn her of what awaited, a thin red mark like a strangling scar now circled her neck. This time, she vows to save the president—and save herself. But in this second chance, Ki Seungho begins to look at her in a way he never did before.