Transmigration: Face slap the white lotus

What do you do when you find out your Aunt is your father's mistress? Your lovely sweet cousin is actually your half sister? Cheng Biyu thought she had it all a loving family and fiancé but soon that was all taken from her by her dear bastard sister. She was too naive to think her life wouldn't be taken as well. She died a regretful death but before she did she promised to curse those who cursed her life, her family. She swore vengeance before closing her eyes leaving the world.