In fact, Yusuf Zuck and Fatty didn't need to stay outside. The only reason Yusuf Zuck had claimed that Fatty should stay was to tease her. He already had someone in mind for the task.
Black Barbarian or Barbarian Newton, even Gracelyn Mckee, could pull out the flag. They could all complete this task and then return to the Demon World afterward.
When Yusuf Zuck shared his thoughts with Black Barbarian, Barbarian Newton, and Gracelyn Mckee, surprisingly, all three of them wanted to go out and pull the flag.
"Why don't you let all three of us out? We'd like to pay a visit back to the Demon World!" Gracelyn Mckee said, "We've been gone for quite some time now, and there are inheritances in secret places within our clans. Since we have evolved again, our cultivation levels will soar once we return to those secret places. This will help us support master in overcoming various challenges in the future."
"Not bad, not bad," Black Barbarian and Barbarian Newton nodded repeatedly.