The Fallen Saint Dances in Vortex of War is a Manga/Manhwa/Manhua in english language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Alicia has been fighting against the demon king's army and protecting the kingdom as a saint. One day, she is falsely accused of having an affair with her fiancé, the prince, and is publicly executed. Abused by the people of the kingdom and despairing of the malice of the people, Alicia makes a final wish. "I'll kill you all" "And destroy this country" She wishes for the death of everyone. Alicia was supposed to have died in this way, but when she realized it, she was brought back to life by the demon king. "Haha, now I can kill them all." The curtain rises on the vengeance of the saintly woman who has been revived from execution...!