After Giving Him My Heart's Blood for His Junior Sister, I Cut Off All Ties

The fiancé I had stood by for a hundred years ran away from our wedding, and on top of that, he wanted to carve out my heart's blood to save his junior sister. “How can a hundred years of cultivation compare to the life of my junior sister?” I agreed. I offered up my heart's blood and severed my ties of love. Later, he said he had his reasons, and begged me, as if gone mad, to look at him just once more. I tilted my head. “Who are you?”