Open the Door. Your Takeaway Has Arrived.

The story takes place in Cangcheng, a modern coastal city. The urban layout is no different from that of ordinary first-tier cities, with tall buildings and criss-crossing streets, busy traffic during the day and flashing neon lights at night. But Cangcheng hides another side that no one knows: the barrier of yin and yang is weak, and there are countless mysterious existences, alien spaces, evil spirits, forgotten ancient taboos, hidden practitioners and strange organizations. Ordinary citizens are unaware of these strange things, and only a few people can peek into the cracks. Due to the nature of his work, the delivery boy frequently travels through the dark corners of the city and late-night streets, becoming a passive participant in strange events.