The Dungeon Master's Guide to Success

Before he left, my grandfather left me a letter and told me that when I wanted to seek change, it was time to open the envelope. Finally, I had enough of the same routine and overtime work, so I opened the letter. Then I inherited my grandfather's... Dungeon? ? ? I, He Xiaoyao, a migrant worker who is tired of the social life, have to rely on running the dungeon, and I have to ask my grandfather to help me with the huge magic debt I owe! I have to keep placing all kinds of natural materials and treasures in this deserted dungeon to attract adventurers to come and "consume" in order to produce magic power. I had to meet all kinds of weird requests from adventurers in order to get good reviews. Is the dungeon too safe to be boring? Add monsters! Is the underground city road too straight to challenge? Modify the maze! Is it inconvenient that there is no toilet in the underground city? Okay, I'll give you the whole public toilet! The kind that's free of charge! Is the dungeon too dark? Arrange for the orangutan to light the lamp for you! There is no ramen shop in the underground city… There are no escalators in the underground city… There are no B&Bs in the underground city… Hello! I advise you, fellow adventurers, not to be too outrageous! Are you here for adventure or vacation?