Weird Stories About Rules: a Huge Mess in the Dungeon

My name is San'er, an ordinary person who only knows how to repair cars. On the Ghost Festival, I was involved in strange stories about rules. Since then, my life has undergone earth-shaking changes. There is a funny rumor circulating in the forum that the top guy on the list was once nicknamed "bumpkin". How is it possible? No one believed it. It wasn't until someone interviewed the boss that he discovered that this was really true. The entire forum was in shock. Which warrior dared to call him a bumpkin in front of the boss? !