Covenant of Shadows:Prisoner of Thorn Manor

In the fictional city of Blackstone Harbor shrouded in torrential rain, Selena, a down-and-out heiress of a once-prominent family, is forced to accept the harsh terms set by the mysterious investor Julian to pay off the massive debts left by her late husband: to serve as the private butler of his estate. However, Julian's true identity is the illegitimate son who was expelled by Selena's family years ago. He not only intends to take revenge on Selena through this "employment game", but also falls into a twisted and obsessive infatuation with her as they spend day and night together. As a series of eerie incidents unfold in the estate, the two become increasingly entangled in a power struggle, forbidden temptation and family conspiracy, and Selena must choose between becoming Julian's plaything and seizing back control of her family.