Young people in the world disappeared one after another, with strange demon talismans left on their chests, and their souls were completely sucked out. In order to find out the truth, Su Qinghuan, the last descendant of the Xuanzhu family, went to Wanyao Ridge alone, but accidentally ran into the secret realm of Xuanlin, the demon king Mo Yuan.
The moment her fingertips touched his heart-protecting scales, the ancient symbiosis contract suddenly awakened: when he hurts, she hurts; when he dies, she dies. The cold and taciturn Demon King Xuanlin originally wanted to break the contract, but found that this human girl could actually read the soul-eating runes and could use mystical skills to relieve his century-old wounds.
"Stay and be my king's princess." He gave her the warm jade bed and clumsily learned to make human osmanthus cakes. However, when the ghost king planned to frame her, he drew his sword in public: "If you touch her, step over my king's body first."
From the human mystery to the demon world, from the century-old illusion in the misty forest to the ultimate seal of the two realms, she used mystical skills to break the situation for him, and he used his demonic power to build a shield for her. When the ghost king Ye Liao came with the soul-eating array, and the three realms were at risk, he embraced her: "Qing Huan, if you win this battle, I will watch every star in Wan Yao Ridge with you for the rest of your life."
In the suspenseful mystery of the three realms, there is the most extreme two-way protection - he is the aloof demon king, but he is willing to make his heart weak for her; she is a mystic with a mission, but she is willing to stake the entire family's oath of protection for him.