Reborn as a Legitimate Daughter: the Regent's Brother Dotes on Her to the Heavens

Liu Siyu, the legitimate daughter of the Duke of Zhenguo, spent all her money to help the second prince ascend the throne in her previous life, but what she got in exchange was a glass of poisoned wine and the execution of everyone in her family. Only the regent Yan Xichen pierced her heart with thousands of arrows. Reborn at the age of sixteen, she worked step by step, tearing apart the hypocritical concubine, uncovering the shocking secret of her aunt secretly exchanging her legitimate son, finding her abused eldest brother, and letting the poisonous and affectionate man know that it was her turn to protect him in this life.