Conquer the Underground City Starting from a Bankrupt Restaurant

Adventurers exist like wild dogs on the roadside in the Western fantasy world. They can defeat the devil and save the world, but they can snatch candy from children and send them to jail to wait for death. They are a group of guys with a huge gap between their upper and lower limits. Su En, who traveled through time, faced a restaurant that was in debt and on the verge of bankruptcy, so he decided to use his own cooking method that was completely different from the other world to make the restaurant bigger and stronger! The first step is to get in touch with the idle adventurers around the dungeon...