I Ran an Underground Dungeon

At the border of the Interstellar Alliance stands a remarkable underground city. The city is a chaotic mix of all kinds, alive with bright lights and revelry day and night. Anyone who enters, whether noble or beggar, receives the protection of its city lord. Even the marshals from every faction fighting within the Alliance must observe a ceasefire here. And so... An assassin wanted across the entire galaxy takes up bartending here; a one-eyed marshal who betrayed the Empire repairs spaceships here; an alchemist who makes nutritional energy potions strikes it rich overnight here; and a tentacled monster with eighteen fingers works as a card dealer here. This independent city is a peaceful oasis for the entire Alliance, because it has a city lord no one dares to provoke! Every day, people come from far and wide to seek refuge and attach themselves to the underground city. They kneel reverently on one knee and touch their foreheads with their hands: "We humbly request an audience with the esteemed city lord." "She's over there." The deputy city lord pointed coldly to a corner of the dimly lit underground hall. "Go see her yourself." On the sofa lay a woman sprawled without a shred of decorum. Her face was hard to make out, but her skin was very pale. She held a tablet in one hand, binge-watching dramas, and stuffed fries into her mouth with the other. Every so often she covered her mouth to cough. When she wiped it with a handkerchief, there was a pool of blood on it. The people who had come seeking refuge: "..." This sickly woman was Meng Xuan, the underground city's legendary city lord, feared even by the Empire's generals???? You've got the wrong person!!! Theme: -