Akuyaku Reijō wa Ringoku no Ōtaishi ni Dekiai Sareru

The protagonist is reincarnated as Tiararose, the villainess of the their favorite otome romance game aimed at female gamers. The protagonist is resigned to accepting the in-game judgment event and the fate that awaits her. However, just as her fiancé breaks off their engagement, the game throws up a marriage proposal event that wasn't in the game's original scenario — from Aquasteed, the crown prince of the neighboring country.