Mariposa

The winds of fate blow, and the lines between present and past begin to blur.
Reuyen Detua is the daughter of a lowly horse merchant living two centuries after the tyrant queen Swan Sekalrid Rarkalia almost led her own country to ruin. But an accident on Reuyen's seventh birthday reveals her to be the reincarnation of Queen Swan. Complete with the disgraced queen’s memories and martial skills, Reuyen is now entangled in the ongoing power struggle caused by Queen Swan two hundred years earlier and is given the chance to right the wrongs of history. Can she make amends for her past life? Or is time destined to repeat itself?

Official English:
Volumes: Poppypub
Chapters: Tappytoon, Wattpad