Doku Wo Kurawaba Sara Made summary:

The Kingdom of Parsemis is a land blessed by an ancient dragon. In this kingdom, the evil Prime Minister Andrim remembers his past life while his daughter's marriage engagement to the crown prince is being broken. At the same time, he realizes that this world is that of an otome game that he was playing in his past life. In the game, his daughter is the evil fiancée of the crown prince and he is destined to be executed alongside her. Unable to accept this, Andrim devises a plan to trap the game's conquest targets, who side with the crown prince. He will stop at nothing for revenge including seducing his own rival...