In the bustling modern city, courier Lin Mo lives an ordinary life. No one knows that there is an ancient sword that has been passed down for thousands of years hidden in the back seat of the electric car he shuttles through the streets every day. When night falls, the other side of the city begins to wake up - ancient martial arts sects, hidden families, and people with extraordinary abilities are undercurrents surging in this seemingly peaceful city. Lin Mo, a special being who delivers express during the day and "door-to-door delivery" at night, maintains the fragile balance of the city in the most simple way. Until one day, he received an express delivery order sent to "Old Town No. 7", And three words were written clearly in the recipient's name column: deceased.
