**Introduction to the work**
The moment the northern lights tore through the night, Jiang Xia and Gu Nan completed a shocking soul exchange experiment. When the blizzard brought down the ice on the mountaintop, Gu Nan used her body to block the fatal blow.
What the world mourns is the death of "Jiang Xia". Only she, who is trapped in her boyfriend's body, knows that the last fragment of her lover's consciousness is locked in the cold corpse in the cemetery.
The reflection in the mirror became the cruelest instrument of torture, and the tremor of the razor across his Adam's apple was as hot as his kiss in the memory. When Jiang Xia discovered that Gu Nan had been diagnosed with ALS three years ago, when records of 293 parallel time and space reincarnations appeared in the experiment log, and when blood beads with formulas began to ooze from the mirror at midnight...
She finally understood that this soul exchange was never an accident.
And the 137 pairs of quantized pupils slowly opening under the ice are staring at the lovers destined to embrace death in all time and space.
Concept: In the fate of quantum entanglement, love is the only eternal force that can transcend the dimensions of time and space.