Every bowl of medicine she serves is laced with soul-eroding poison.
The soul-sealing mark she ties on him, however, is declared to be a "betrothal gift."
Wei Ling is a "shadow demon" planted in the immortal realm by the Demon Lord, forced to play the part of a docile disciple day and night in the icy palace atop Kunlun. Her younger brother You Tong is wailing in a blood pool in the demon lair, an unbreakable chain around her neck. Every day, the "mind-calming tonic" she serves the supreme Immortal Venerable Shen Qingli is secretly laced with soul-eroding herb poison. It's the price she pays to stay alive, and a torture that slowly flays her soul.
Shen Qingli, the Azure Dawn Immortal Venerable, commands the law and terrifies all demons. Her beauty is unparalleled, yet her face is veiled in the frost of ages. She knows Wei Ling is a spy and sees through every drop of poison, but gives nothing away. In the dusk-lit palace, when Wei Ling offers her another bowl of "gut-piercing poison," Shen Qingli instead takes the soul-sealing mark, a sacred artifact of the immortal realm that she never parts with, and ties it around Wei Ling's waist herself. "Take this as my betrothal gift. When you have cultivated an immortal body, we'll hold the ceremony."
Horror! Absurdity! Utter terror! Wei Ling's world crumbles completely. She knows! Is this icy seal a judgment, a shackle, or a scheme too deep to fathom?
The war between immortals and demons erupts without warning! Amid a sky full of blood, as the Demon Lord Jinran's annihilating black light tears through space and aims for Shen Qingli's back, Wei Ling's body lunges toward death before her mind can react!
Blood stains the sky as she falls into her master's arms. With her life ebbing away, she finally confesses: "Master... I... am a spy..."
Her answer is a whisper as bloodstained fingers brush her eyelids:
"I... have been waiting for you to confess..."
"For three hundred years."
Then, as Shen Qingli reverses the flow of her immortal energy and her lotus platform turns into demonic flames, she falls from immortality before everyone's eyes. A heart-rending shout rings out:
"Sis! You fell from immortality for a traitor... Was it worth it?!"
A shocking reversal of identities! Shen Qingli, fallen from immortality, flees into the demon realm with the gravely wounded Wei Ling in her arms. Spy and fallen immortal, prisoner and protector, hatred and redemption... Amid the demon world's violence and bloodshed, they are forced to confront each other's deepest secrets and the truth of their shared bloodline. Meanwhile, the "Chaos Core," which holds the fate of the three realms, is dragging everyone toward the final battlefield.
Poison as the lure, soul-sealing as the betrothal.
Theme: A meeting born of conspiracy and poison, an immortal-demon tragedy about betrayal, redemption, identity, and the ultimate act of protection.