The circus this time chose to debut in the Hydatoncus Mountains of the Old World, also known as the Water Tumor Mountains, so named because the mountains resemble tumors.
Since they are tumors, they must certainly be associated with the Cancer Palace, although the mountains are far from the Cancer Palace, requiring more than two days even with the Black Worm Train.
In addition, the Water Tumor Mountains did not always exist but formed during the invasion war that changed the landscape of the Old World and put the rules under lock and key.
At the time, a squad of thirty Honored Tumor Knights, to buy time for the main force, deliberately led the enemy here, engaging in heavy battle for two full days and nights, far beyond the expected delay, but the knights were completely surrounded with no chance of escape.
In the end, all the knights chose "cancerous self-destruction," determined to annihilate the enemy as much as possible even if it meant their own death.
