My Engagement to a Strange Duke Was Unexpected

I Was Supposed to be a Mob Noblewoman Before Iwas Killed - Unexpectedly Engaged to a Mysterious Duke, Tenseisaki wa Korosareru Hazu no Mob Reijou Deshita ~ Mishiranu Koushaku-sama to no Kon'yaku wa Souteigai desu ~, The Reincarnation Destination Was a Mob Girl Who Was Supposed to Be Killed ~The Engagement With a Strange Duke Is Unexpected~, 転生先は殺されるはずのモブ令嬢でした

Synopsis My Engagement to a Strange Duke Was Unexpected

“Can you entertain me?”

Lydia, the countess who was reincarnated in the romance novel she read in her previous life.

In order to change the fate of being killed by her “villain” fiancé, she decides to ask for help from a hostile secret society. The game begins with the leading royalist duke Liage, who appeared as a negotiator, but… When I realized, I was engaged to him!?

A ruthless strategist who wears the face of an orthodox hero is obsessed with a mystery ──?

Mob young lady who wants to avoid death × The mysterious duke who controls the country in the behind-the-scenes organization dangerous contract love fantasy!