Suterare Saijo wa Kazoku to Nonbiri Ikiru Koto ni Shimasu

Overview

Anneliese, a young lady, has been praised for her genius since she was a child. But one day, just before her wedding to her fiancé, the crown prince, he cheats on her, breaks off the engagement, and then she is exiled. Outraged by this unreasonable treatment of their daughter, her parents decide to abandon their country and emigrate to a neighboring country. Annelise is actually a reincarnated person, and she uses the knowledge from her previous life to come up with groundbreaking ideas. And as Anneliese's success spreads both domestically and internationally, her homeland, which allowed her to flee, realizes the magnitude of its mistake... A new world for the talented reincarnated young lady's second life! (Source: Kadokawa, translated)

Source: AniList