I Became the Admired Saint, but Since I Was Stripped of Everything, I Will Have My Revenge

"Saintess" are a rare existence, with only 10 in the world. Lana, born into poverty, is gifted with the rare talent and hard work to become a saintess, and with the help of garrison commander Aster and his companions, she finally becomes the saintess she has always dreamed of. However, due to a terrifying scheme and betrayal that was unfolding behind the scenes, the companions she loved and trusted more than anyone else are executed. With her beloved companions dead and Lana on the brink of despair, she decides to seek revenge using her unprecedented, extreme skills. https://www.cmoa.jp/title/287308/