Akuyaku Reijō wa Ringoku no Ōtaishi ni Dekiai Sareru (2025)

Original title: 悪役令嬢は隣国の王太子に溺愛される

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.