The Consort Who's a Bloodthirsty Doctor

In her previous life, prior to a plane crash, she was an expert in both medicine and poison. In this current life, she is the legitimate daughter of a noble family whose fiancé has been taken by her illegitimate sister. As soon as she begins her new life, she discovers that she is plagued by a severe case of body odor. The younger sisters of the original host's body look down on her, and she learns that the original host met her demise after striking her head against the railing when her fiancé struck her. Now that she has taken the place of the former host, she will not permit these vile villains to keep tormenting her. Why does the Cold-faced Prince, referred to as the War King of Hell, appear so different from the tales told about him? In any case, anyone who insults her, frames her, or attempts to take her life must face death!