Spatial Backpack: Scavenging Across Worlds and Smuggling My Way to the Top

[System-driven story] + [Farming in a Pocket Dimension] + [Travel Between Worlds] + [Low-Key Urban Billionaire] + [Play the pig to eat the tiger]

After his girlfriend dumps him because her family disapproves, the protagonist tries to trade his game points card for a gift, only to be given a hard time and fobbed off with a pink handbag.

By the roadside, he trades it for a shabby backpack from an old woman who collects scrap. In a bad mood, he gets drunk, falls, and cracks his head. His blood seeps into the backpack, activating the Junk Collector System of Ten Thousand Worlds and a god-tier pocket dimension on the spot!

The pocket dimension lets him farm and raise livestock, upgrade and expand it at will, and even control the flow of time. Countless gateways to other worlds open wide: the Immortal Realm, the Magic Realm, the Soul-Fighter Realm, the Mecha World... They all send him out to collect junk!

What others see as trash becomes a priceless treasure in his hands! He smuggles junk in exchange for immortal arts, mechas, and divine medicine. In the real world, he keeps a low profile and stays under the radar, while his proxies are everywhere and he secretly steamrolls the heavens!

He keeps backup plans in every world, and his underlings run rampant across them all. He just plays the pig to eat the tiger, becoming the hidden emperor of all worlds by collecting junk!