The Sword-Bearing Flower

Historia

Echineacea Roaz is graceful, beautiful, and impeccably dressed, even on the dueling grounds. Yet beneath the lace gloves and silk hats is a deadly swordsman with a dark secret. As the Demon of the Cursed Sword, she once slaughtered all she loved, including Captain Eurien, the one man who believed in her. Granted one chance to rewrite fate, she turns back time and joins the knighthood to protect those she once failed. Can this elegant swordsman bloom anew, or will she cut everything down again?

Sinopsis vía AniList (en inglés).