Disguising as an NPC in an Infinite World

'''[Pre-receive "Can Still Be Saved [Infinite]" – Please bookmark! ovo] As the last demon in the world, Shi Que runs a shop that grants wishes in exchange for corresponding prices to survive. One day, a strange, dying human barges into his store. Shi Que smiles in welcome: "What would you like to purchase, dear customer?" The guest, filled with desperate longing, stammers: "I want to buy my life..." "I'll pay any price!" "Please... let me leave this infinite world alive." Shi Que grins slyly: "Deal. Transaction confirmed." From then on, a mysterious shop suddenly appears in the most bustling spot on Central Avenue within the infinite world. Rumors spread that all pla...