Moto Kyuutei Renkinjutsushi no Watashi, Henkyou de Nombiri Ryouchi Kaitakuhajimemasu! Konyaku Haki ni Tsuihou Made Set Deshitekureru n desu ka?

Amelia is the youngest person ever to be appointed the court alchemist. However, she is forced to carry an impossible workload, bullied by people jealous of her unparalleled talent. In addition, her sister steals away Amelia's fiancé, who banishes her from the royal capital! But Amelia is overjoyed to be finally free to live her life as she pleases. She travels to the frontier territory governed by her childhood friend Thomas. Surrounded by kind people, she begins a relaxed frontier life, totally different from the toxic environment of the capital!

(Source: Over-Lap, translated)