Reborn as a Concubine and Turned into a Blind Princess with a Sweet Palm

In her previous life, in order to protect her adoptive mother, Xue Lanshan was framed by her own mother and killed by her own brother. After she was reborn, Xue Lanshan was ruthless and killed all the princes. She only wanted to get married to the blind princess for leverage. She just wanted revenge and left with her adoptive mother to live a happy life. The blind princess refused. "Princess, throw it away after using it. I will die for you." She held her forehead, why did she marry such a delicate husband?