Everyone knows that there is a pair of perfect partners in the supernatural action team: one is "Zero" who acts strangely and is as cold as ice, and the other is "Xiaoyao" who is unruly by nature and laughs at the situation.
But few people know that in those dust-shrouded ancient files, they once had a past that was erased and intertwined with blood and tears.
Three hundred years ago, the gate to the underworld opened wide, and all ghosts walked at night. In order to protect the younger generation who was always smiling but always put himself in danger, Zero sacrificed his own soul and formed an ancient spirit-locking contract, pushing Xiaoyao Shengsheng out of the life-and-death situation.
In that battle, Ling's soul was shattered and fell into Infinity; Xiaoyao survived, but lost his heart.
"Every year without zero" is Xiaoyao's most desperate curse in his long years. He traveled through the netherworld of the Nine Provinces and searched through the forbidden arts in the world. Even if the fire of karma backfired, he still wanted to snatch that person back from the hands of Yama.
"There will be freedom tonight" is Ling's only remaining obsession in the endless darkness. Even if his soul is extinguished, even if his past life is completely forgotten, as long as he can still feel the familiar temperature, he is willing to fall into this rolling world of mortals again.
When the ancient seal finally loosened, when Leng Ao's senior opened his eyes again, he found himself lying in the arms of a young man whose eyes were red and bloodshot, and who was holding on to his wrist.
"Senior," Xiaoyao buried her head in the crook of his neck, her voice was hoarse, with an almost paranoid attachment and grievance, "You have slept for too long... So long that I almost forgot that you still smiled at me."
This is a two-way journey that spans life, death and time.
Even if the nights are long and the years are ruthless, as long as you are still here, I will always be the happy one who takes care of you.
Concept: The love story of Xiaoyao and Ling