The hit female lead is the best mouth double

The female protagonist unexpectedly found herself transported into a fictional world. Once timid and submissive, she had now transformed into the queen of witty comebacks. In her daily teasing banter with the assertive and charming leading man, their playful exchanges slowly turned into a spark of romance. Just as the two were on the brink of their perfect ending, the female protagonist was attacked by her stepmother in a fit of rage, wielding a knife. Will she ever find her way back to reality? And what will happen to her fated bond with the leading man?