The Black-Hearted Businessman in the Labyrinth City

Aisi: "How can I buy this enchanted 3600-turn Gatling weapon? Why not buy it?! It's a family heirloom weapon. I only give it to my wife... If you don't mind, I, I can..." Riveria: "Haha, the Holy Grail I got from Boss Nilbo is really useful. I won't have to sell panaceas anymore." This is the story of a time-traveler who takes his system to seek encounters in the dungeon. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.