Over the course of the two weeks, some things changed. First of all, Lily and Alexander informed to those who knew them that Lily was expecting a child, so they didn't have to keep it a secret anymore. As for another change was the fact that Billy received eight gold coins from the dungeon town, he didn't do anything yet, but he was already being paid. He also had to name his party since it would become the name of the guild as well and thus the name of the dungeon town.
Although Billy had the mind of a man in his thirties, only silly names came to mind. Justice League, Avengers, Akatsuki… He was too old to choose one of those, so he began to think hard about it. Unfortunately, the guilds need to have flashy names, and Jean even had the nerve to vet some of the names Billy picked. After much discussion, they decided that Vanguard was good enough. It was simple but strong, and Billy truly was in the vanguard in many fields, just like his friends.