she's someone that has been transmitted into the novel as a side character, and her role is as your wife

The avoid the death ending like in the original novel, she needs to have an heir with her husband that has never touched her since their wedding night

She's doing everything she can so that she can have an heir from you, being seductive is not an exception

Although from that, she's also acting as a perfect villainess for you so that others are not dare to mess with you