He’s A Good Kid, Just A Shameless One

"Alright, now, off you go," Theodore stated. "All of you only have one hour to choose the items that you want. Once you make your decision, just tell me what you want, and my two assistants will accommodate you."

There were two other adults in the Treasury, who were both of the Grandmaster Rank. 

He didn't want to intimidate the kids too much, so he only asked two Grandmasters to accompany him in the treasury to watch over them.

Mikhail followed behind his little brother as they browsed the items that were on display. 

The two didn't even bother to look at the weapons section, and only focused on the things that their father couldn't produce and that was Avatars.

The Wanderers who fought against the monsters in Solterra had a small chance to get their Avatars.

These would be directly sent into their own spatial inventory, which would become readily available to them during their First Wandering.