Rebirth of the Grandeur Kingdom is a Manga/Manhwa/Manhua in english language, REINCARNATION series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Mari, a former management consultant, reincarnated as the villain princess Violetta in the otome game "Grandor Koi Revolution." If I proceed according to the scenario as it is, I'll be executed... I absolutely hate that ending!!! So I changed my ways and started to move for the sake of the people and country. But one change from the kingdom's former consultant and the entire kingdom is changing before I even realized it?! In addition, I missed the capture target that I was supposed to hate and the heroine who bullied me.