Su Lingxi, a modern emergency doctor, accidentally traveled to a different world where fairies and demons coexisted. She was burdened with the legacy of the Lingxi clan and her obsession with returning home. She and Feng Yuan, the young master of the nine-tailed fox in Qingqiu who was poisoned by the Huagu Powder, formed a bond by making a pact of "finding the origin and undoing the curse" - from mutual defense when they first met in the cold forest, to the growing love under the peach of Qingqiu, to fighting the blood demon together in the Ten Thousand Monster Cave, avoiding pursuit and killing together in the Forgotten River in the Demon Realm, and facing life and death in the Lingxiao Palace of Heaven. In the dispute between the three realms, the two turned a "transaction" into an unforgettable affection.
The road to find the source is full of dangers: the fairy princess Lingyue set up a soul-forgetting curse and an immortal locking formation because of her obsession with marriage, in order to cut off her love and seize her blood; the demon lord Yeli kept entangled with paranoia to repay the favor of saving her life, but finally let her go with the words "peaceful years"; the human prince Xie Yunlan used gentleness as a shield, hiding his unspoken love, and silently protected her from danger. There are even remnants of the Soul Devouring Clan dormant, hoping to use Lingxi's bloodline to break the seal and stir up the life and death of the Three Realms.
Su Lingxi was obsessed with returning to modern times, but at the moment when Fengyuan blocked the arrow for her, resisted the decree for her, and gave up the dignity of the young master of the demon clan for her, she understood that "going home" never means returning to the starting point—— When the fox fire stone in the Ten Thousand Monsters Cave illuminates the care in each other's eyes, when the bloodlines on the banks of the Wangchuan River resonate to dispel the demonic energy, and the original light of the Lingxiao Palace in the heaven intertwines to form a protective barrier, she finally understands: What is difficult to cross the Wangchuan River is never the way back, but the fetters that cannot be let go; difficult feelings will eventually be fulfilled in staying together, and the place where Fengyuan is is the destination she has found across time and space.
