You Are Invincible

(Single female protagonist, decisive killing, rebirth) The sword fairy in white once stood at the top of the fairy world, and when his sword came out, the situation changed. However, he was betrayed by his apprentice because of the legend of apotheosis, and was besieged by the immortal world. When the black sword was stained with blood and screamed, he fell into the endless abyss. Reborn as a young man. In this life, all those who betrayed me and the cold-eyed immortals will be buried under the black sword. In this life, I will be invincible.