A Portal to All Realms? but This Is My Supermarket!

Wang Ji, a college student whose parents traveled abroad and lost his job after graduation, chose to live out his old life and take over the management of his own supermarket. The strange thing is that even though the location is remote, there are always customers who dress up in a special way and speak in a vague way. They also like to pay with comic exhibition materials that he cannot recognize. "Perhaps they are all cosplayers of Two-Spined Salamander." "But... Which show are they cosplaying in?" "Hey, why does this crystal glow?" ... "SSS-level superpower, Wang Ji, you conduct private trade across all realms, come with us." A few years later, as investigators from the Supernormal Administration searched boxes after boxes of "physical evidence" from under the cashier, Wang Ji's voice trembled, and she was about to cry without tears: "This, this, this... Who put so many spiritual stones in my shop?" "Hmph! Now you admit that this is your supermarket?!"