Cultural relics appraiser Audrey Sullivan is invited to Cloud Haven, a mansion from the Republican era, to authenticate historical artifacts. In the attic, she stumbles upon a yellowed diary that reveals a tragic love story buried for over a century. During the Republican era, Sophia Lawrence, a progressive-minded teacher, falls in love with Ethan Chase, the second young master of the Chase family. Their romance meets fierce opposition from Nathan Chase, the elder brother and family heir. To protect the family's interests and secure a strategic marriage, Nathan fabricates evidence against the Lawrence family, ultimately forcing Sophia to take her own life. But time has not erased this dark history. Nathan's vengeful spirit still haunts Cloud Haven, tormenting even his own descendants. As Audrey delves deeper, she discovers that she is a blood descendant of the Lawrence family. Meanwhile, Matthew Chase, a descendant of the Chase family, finds himself in danger simply for seeking the truth. Guided by Sophia's spirit, Audrey must traverse a mysterious mirror world, confront Nathan's malevolent spirit, rescue Matthew, break the century-old curse, and finally allow the star-crossed lovers to rest in peace. A tale of love and hatred, vengeance and redemption that transcends time and space. In this mansion where East meets West, past and present converge, the living converse with the dead, and long-buried truths come to light.