Heaven-Defying Alchemy Prodigy: Sect Leader, Take Your Medicine

In ancient times, the demons broke through their seal and brought disaster to the mortal world, unleashing bloodshed and chaos. She was the only princess of the ancient Divine Clan, lost among ordinary people. He was a prodigy alchemist in the cultivation world and a noble prince of the imperial family. They met briefly in childhood, then encountered each other again at the immortal sect on Mount Shu. He was a nine-tailed fox demon from the demon realm. With his primordial spirit damaged, he had no choice but to be reborn in a mortal's body, and was firmly convinced that she was his fiancée from a previous life. As the sole surviving descendant of the Divine Clan, how will she resolve the conflict between the cultivation world and the demon realm? Who does she truly love: her lover from a past life, or her fiancé in this one?