I Went to the Heavenly Palace to Sell Candied Hawthorn

Li Bai, male, 22 years old. Food delivery rider and part-time candied-fruit hawker. Clean-cut and honest-looking, with a kind heart and no guile. Born with top-tier karmic luck: he trips and finds gold ingots, steps into a hole and finds divine artifacts, and even accidentally foils conspiracies while cursing. His catchphrases are "That actually works?" and "A loss is a blessing!" He has no cultivation, yet is immune to all immortal arts, all divinations, and all curses.

In an alley after the rain, Li Bai trips while delivering food and fishes a red street-vendor permit out of a puddle. The moment he tucks it into his pocket, men in black from Heaven's secret division show up with scanners to search for it. He plays dumb, wheels his bike away, and has no idea that the permit in his pocket belongs to the Celestial Palace, and is also the master key to the spirit network that the Three Realms are scrambling to get their hands on...