Marvel: My Dimensional General Store

A no-frills System brought him to Marvel, but before he could bind with it, someone stole it. As a result, he unexpectedly activated the strongest general store System. What? The Host has to find the merchandise himself? So Zhou Cheng travels between multiple worlds and begins a delightful life of sourcing goods. (This is a slow-burn story, half goofy comedy, and not a mindless System power fantasy. I originally planned to write over a million words, so I got a little carried away. There isn't a single proper villain in the first hundred chapters, which is a bit of a problem!)