Aaron wants to enter the Core Area, where there are more treasures with better grade and quality.
Everything in existence has grades. Just like how awakeners have Ranks and Levels, items like herbs, potions, weapons, etc... everything was classified accordingly.
Even treasures are graded.
Aaron doesn't know much, as he has just started the academy and most of the time was spent levelling up, but he learned a few things.
Just as awakeners, items start at Tier-0 rank. There are levels for awakeners, but items would have stages, and there are only four, no matter the Tier. These are Lower, Middle, Higher and Peak stages.
The Undead Bloodthistle that he found was a Peak stage Tier-1 treasure.
There could be a few Lower Stage Tier-2 treasures among his finds, but he couldn't recognise them. He was sure that there would be a lot of Tier-2 treasures in what was classified as the Core Area.
