The entrance to the Northern Region's Secret Realm lay at the foot of an enormous wall.
South of this Great Wall was the territory of the Great Dragon Dynasty. North of it lay the ancient battlefield where the great monsters slumbered. So strictly speaking, to step into the Northern Region's Secret Realm was to cross the border and leave the Great Dragon Dynasty's jurisdiction behind entirely.
That was precisely why the Northern Region's Secret Realm was so dangerous.
Back when Yino was on holiday in the Imperial Capital, he had casually written Nangong Xi a letter. In it he mentioned the moon goddess sacred relic of the Northern Region's Secret Realm, along with a rough map he sketched on a whim.
His reason for inviting her was simple enough; one more friend meant one more pair of hands.
