Check The Haunted Palace Episode 1

Synopsis

Yeo Ri tries to escape the shadow of Kang Cheol, the dragon deity who ruined her past. A request from Yun Gap leads her onto a dangerous path where he is lethally ambushed by political foes, giving Kang Cheol the perfect chance to possess his body. Now, her greatest enemy is closer than ever within the form of her trusted, dying friend.