In the prosperous and smoky Xinghai City, delivery boy Lin Xiaoman rides his electric bicycle that is almost "emptied out" through the streets and alleys every day. In order to make more money to pay the rent, he rides up to the sky and dares to take any weird orders. Until one day, he received an order with the note "delivered to the top floor of the tallest building in Xinghai City, with customers waiting beside the clouds." He thought it was a prank, but when he bravely rode to the top floor, he actually saw Su Qingyuan, a girl with a cool temperament wearing an ancient style dress, standing there, with a talking white cat floating beside her. Starting from this order, Lin Xiaoman's food delivery career completely "went astray". The orders he received became more and more weird - delivering nutrient solution to a glowing tree, delivering throat lozenges to a stone statue that sang in the middle of the night, delivering ingredients to a cabin that could move by itself... And Su Qingyuan always appeared near these strange orders. She seemed to be hiding a secret about the "Fantastic Creature Colony" in Xinghai City. While Lin Xiaoman complained that "this generation of customers is too difficult to attract," he couldn't help but be attracted by these fantasy events and Su Qingyuan. The two went from strangers to familiarity, and together they solved various "troublesome orders" from fantasy creatures. They also accidentally discovered that someone was secretly destroying the fantasy balance of Xinghai City. They had to join forces to protect the dual worlds of the city in the daily and fantasy adventures of delivering food, and gradually found out each other's little secrets.
