I've Returned with a Storage System!

Item Box? Inventory? System? HE GOT IT ALL! .. but It's only good for storing things? The MC wryly smile. MC: How is this a long time cheat? Author: It's good enough for you. Let's be realistic ? MC: At least give me something unique! Author: You ever heard of a system purely for storing? -the author look at the Mc with disdain MC: No? Author: There you go. Unique, right? MC: ... The MC didn't know if he should laugh or cry