Tsuihou Sareta Akuyaku Reijou wa [Renkin Skill] de Kareinaru Cheat Seikatsu wo Mankitsu Suru

Henrietta, a duchess's daughter, is falsely accused of a crime, has her engagement to the Crown Prince broken, and is banished from her country. The shock of this revelation awakens memories of her past life as a renowned alchemist, and she awakens a cheat skill. Using this power, she fakes her own death. She sets off on a journey to enjoy a new life of freedom, but just as she is leaving, a wounded knight falls from the sky... (Source: Natalie, translated)