The three Venerable Tumor Knights present at the venue actually liked such an underground area rather than disapproving of it.
They all hailed from humble beginnings, supported each other, and climbed step by step to their current positions.
During their climb, they had all used such underground open competitions as stepping stones to win money, honor, and attention. Without the championships granted by the Duel Arena, they would probably have had to take many more detours.
One of them had even won the championship five times in a row, had become good friends with the owner of the place, and even now, they would occasionally meet to appreciate some "good stuff" together.
A while ago, during a dinner, the owner, on a whim, issued a duel challenge. Memories of old flooding back, and since he couldn't participate himself, he informed the "New Soldier Camp," immediately getting a large response.
To ensure that the knight order would not lose face in such an underground competition,
