Delivering Across the Heavens, Turning It All Over to the Nation for a Hundredfold Return

[Wild premise + modern urban martial arts + multiple world-hops + national destiny] Lin Chen, a food delivery rider who just got laid off, jumps into a river to save someone and accidentally bonds with the [Myriad Worlds Express Delivery System]. His very first order sends him to a cultivation world to deliver pills to the Holy Maiden of the Hehuan Sect?! And so Lin Chen begins a hardcore routine of “accept an order, cross dimensions, deliver goods to his country, collect a hundredfold rebate”: Instant noodles for the prime minister's northern campaign?! An Italian cannon for Li Yunlong?! A lighter for a world of magic?! Just as the Holy Maiden of the cultivation world and the demon queen sister start making eyes at him, the System's forced-return warning goes off: “Sorry, national missions take priority!” From a delivery box to a warehouse spanning the myriad worlds, from hospital pajamas to special forces gear, Lin Chen's delivery list keeps growing: Spirit-rice seeds to solve food shortages, starship materials to strengthen national defense, cultivation techniques to train superpowered soldiers... The whole world is stunned: “Has Huaguo secretly opened a portal to the myriad worlds?!” Standing before the United Nations General Assembly, with a coalition of starships and cultivators behind him, Lin Chen says, “Don't panic. This is standard procedure.” [With the country at my back, I'll bring the myriad worlds' bounty to every household! The story of how an ordinary man uses cross-dimensional express delivery to help the Flower-Growing Country rise above the myriad worlds.]