After graduating from college, I inherited my parents' "express delivery company" - delivering express delivery to the Yin and Yang Realms.
Lin Yu returned to the village to look for his parents and found a leather ledger in the basement of his old house: "Huangquan Express - Huai'an Village Station". It turns out that his parents are yin and yang couriers. Every time they deliver an order, one point of yang energy is deducted, and after ninety-nine orders, they will fall into the underworld forever. What's even more frightening is that his parents are dead, and when they fished out their bodies from the bottom of the well, they held half of the "shopkeeper's seal" in their hands, and the murderer used the Su family's secret technique.
Su Yao is from the Su family. She approached him, initially to get the seal. But it was true that she stood in front of him in the mother-in-law's coffin.
From mutual use to life-or-death partnership, the four of them, together with the technical nerd Agui and the papermaker Granny Liu, traced the truth and discovered a more terrifying secret: the existence of Huangquan Express was to "feed" the Nine Yin Fetuses - thousand-year-old spiritual bodies with nine dragon veins and yin energy gathered together. When mature, they will give birth to the emperor of the underworld, who will control the invasion of ghosts into the human world.
And Lin Yu is the ninth person with a pure yang destiny, the most desired food for the nine yin fetuses.
Nine ancient tombs, nine dark paths, and nine fragments. Paper figurine wedding, Huangquan Inn, Yin soldiers borrowing a way, Ten Thousand Bone Demonic Tower, Zimu Hemu, Fox Fairy Painted Skin, Zhong Kui's Broken Sword, Reincarnation of Po Meng...
His parents exchanged their lives for the truth, Su Yao's father exchanged his life for fragments, and the ferryman exchanged thirty years of seal for information. All clues point to the same answer:
It's not a signature, it's not a sacrifice, it's a "return".
"Yin and yang are separated, but thoughts can reach each other. But this time, we don't send express delivery - we send hope."
