At the Beginning, She Dressed as the Yandere Villain's Seductive Fiancée.

I, Gu Yao, transmigrated into an ancient bloody novel called "The Overlord's Runaway Sweetheart" and became a wealthy daughter who was unable to fall in love with the male protagonist and went crazy to commit suicide to humiliate the villain's fiancé. According to the original work, after I madly targeted the villain Pei Yan and tried to drug the male protagonist, I was sent to a mental hospital by the awakened Pei Yan, with a tragic ending.