During the Four Hundred Years of Traveling Back and Forth, This Female Sword Fairy Was Too Contrasting

I wore it, but not at the right time. When I opened my eyes, it was 400 years before the destruction of the Xia Dynasty. I was lying in the ruins, with seven bones in my body broken. Next to me squatted a girl covered in blood, poking me in the face with the tip of a sword. "Are you still alive?" "... Alive." "Oh, then I save you, you owe me a life." Later I learned that her name was Jiang Ci, and four hundred years later, her head hung on the city wall for a full hundred years. ——The number one female swordswoman in Daxia, she committed treason and killed nine tribes. I originally wanted to stay away from her, but she grabbed my wrist and smiled maliciously. "You try running." Four years later, she forced me to learn to wield a sword. Ten years later, I accompanied her to defeat the nine halls of the Yama Palace. Forty years later, she stood at the end of the mountain of corpses and sea of ​​blood, looking back at me. "I'm going back." "Back to where?" "Four hundred years later." "I'll go too." She smiled, much gentler than when she found me in the ruins. "You will die if you go." "What about you?" She didn't answer, just handed the sword into my hand. "Live for me." I gripped the sword tightly and watched her being swallowed up by a ray of light and disappearing into time. Then I lowered my head. On the hilt