Upon recruiting Gao Jia in The Trials of Boddly, you find out that you need to get two more people, one of which is Bai Gon. He will be found right before Fortune Square and wants a simple task from you, to defeat three Grimchilla Bangers. These are very common in the area surrounding Goldpaw, so it shouldn’t take long at all to get the required number. Report back to Bai Gon and you will finish this very easy sidequest.