The Lost Duke's Daughter & Her 3 Brothers

Sylvia, the Sun Duke's long-lost daughter raised by a herbalist, is betrayed by her fiancé and a baron's daughter who steal her identity ruby and evict her. Her three brothers arrive as an imposter poses as heiress. When her blood wakens the ruby's phoenix totem, villains fall and she reunites with the Northern Duke who waited 12 years for her.