Blue Wizard – The nickname given to the greatest magician in the Western Continent. She mastered all the magic in the world, but that wasn't enough to be called great, she was the only one who ended the dungeon's "expansion" over the entire western continent, repelling them back. the "Gate of Origin" side.
But this also led to the ruin of the adventurer class - the largest force that joined to clear the dungeons. Their indignation led to the uniting of all the adventurers, deceiving the people, planning traps and sealing all of her magic, throwing her into the "Infinite Dungeon" - where the other side of the "Gate of Origin".
Betrayed by the humans and with no magic left in her hand, she decides to find all the fragments of her magic on her own, conquer this infinite dungeon, and settle the accounts of those who have harmed her.