According to Sarah, like "No Name," "Underwood" had also suffered an attack by a Demon King ten years ago. Unlike "No Name," however, they had successfully defeated the Demon King and protected their territory. Even so, the Demon King's remnants still coveted the place, and those remnants... were the Giant Tribe.
As for why the Giant Tribe had attacked again after ten years, it was because of a Strong Gift possessed by "Underwood"—Balor's Eye of Death.
Balor was the king of the Fomorians, an Evil God from Celtic mythology. Legend said he had two eyes, one of which remained tightly shut and required the strength of four strong men to lift its eyelid. Once that closed eye opened, anyone struck by its gaze, god or human alike, would die instantly.
It was precisely because of its value that those giants wanted to attack this place and reclaim it.
And the reason the "Dragon Horned Griffin Lion" alliance had invited "Heavenly Dao Palace" and "La Campanella" here was...
"You want us to help protect the town from being damaged?"
Jack O'Lantern and Aisha both clearly looked reluctant. Apparently, neither of them wanted to take part in this sort of battle.
"Big Sister Vera may be strong, but her personality is totally unsuited for fighting, okay? Besides, for something like this, shouldn't you first go to the Southern District's 'Dominator of the Layer'?"
Aisha vigorously shook her twin tails as she voiced her objection, while Sarah sighed helplessly.
"Unfortunately... the Southern District currently has no Guardian of the Layer."
"...Huh?"
"Just last month, around the same time the 'Black Death Spot Demon King' appeared, our Southern District's 'Dominator of the Layer' was defeated by a Demon King that appeared in the 700,000 Outer Gate. Their whereabouts remain unknown, and we do not