This boundary was originally the former Demon Domain.
Ten years ago, the Saint Master personally led the troops, setting out from Taixuan Divine Mountain, heading north to purge demons.
The Holy Alliance army marched south from Prince Zhen Nan's city, to slay demons.
With attacks from both directions, they finally broke through the Demon Domain, cleansing the demons and evil spirits within.
Using the bodies of various Demon Kings and the Evil Qi, they set up formations along the way, forming an existence similar to a Pure Land.
In these ten years, although this land continually births demons and evil spirits.
Yet, within these ten years, the demons and evil spirits are usually not too powerful, so they dare not invade these temporary Pure Lands established by the Human Clan.
