After Being Reborn, I Became the Female Lead's Big Sister

In her previous life, she was unlucky enough to be kicked into a lake by the second female lead and drowned.

The second female lead even earned credit for saving her, then thrived in the capital.

By chance, she was reborn as the second female lead's legitimate elder sister.

She would avenge herself.

But one day, she discovered that there was something suspicious about her own origins.

And the person she could never have imagined would stay by her side until the end of her life.