Song Xing'er, a senior at a university on Blue Star, is forcibly transported to the Lingyan Star Domain on the eve of graduation. Her consciousness enters the ruined body of a princess of the Divine Realm.
At the time, the Star Domain's ancient covenant is on the verge of collapse, and the countdown to the world's destruction has begun. As a spiritual maiden reincarnated for the third time, she is swept up by the Spiritual Maiden Contract System and told that she must complete a bonding mission with the heirs of the four great families to unlock the way home.
The cold and restrained Pei Jinyan, the gentle and calculating Su Qingci, the passionate and unruly Ling Xiaoye, and the aloof, perceptive Xia Zhiheng: four scions of illustrious families are drawn to her by the destiny of their souls.
Song Xing'er is consumed by her determination to return to Blue Star. Clear-headed and wary, she plays along with the others and pretends to obey the System while secretly searching for a way home. But the arrangements at Xingyao Villa match her tastes a little too perfectly, the System in her mind keeps malfunctioning, and strange black mist wanders along the edge of the barrier. Everything feels suspicious.
As Jin Xu appears, tempting them with destruction, layer upon layer of deception is exposed. The so-called bonding ceremony to save the world is actually a shackle that permanently imprisons souls. She realizes that she is nothing more than a sacrifice under the old covenant system.
On one side is the lure of returning to her homeland; on the other, the fate of billions of lives in the Star Domain, along with tangled, unbreakable affections. Song Xing'er breaks free of fate's control and resolves to rewrite the ancient covenant, built on exploitation.
The apocalypse arrives, a catastrophe from the void sweeps across heaven and earth, and the truth of their twin destinies comes to light. Awakening in the face of despair, she must choose between love and hate, and the fate of all living things. In the end, she brings peace to the Star Domain and returns to Blue Star through the stellar passage, embarking on a journey of mutual devotion across two worlds.
