Mei Yingxue was burning with anxiety.
That was the Sun True Dullness Sword, the Clan's Divine Sword of the Human Race!
If the Divine Sword was in hand, why fear the Orochi? It would be just a matter of a casual swing.
Historical records indicate that the Sun True Dullness Sword disappeared along with the last Sect Leader of the Emei Sword Sect.
According to the True Obscurity Sun Sword Intent, the sword itself was unwilling to stay with a sect because the sword master was unworthy, leaving only a trace of sword intent, and then went straight towards the East.
In the Cultivation World where Mei Yingxue was born, the easternmost point of the continent was Fusang Island, approximately over 20,000 li away, inhabited by only primitive native tribes. Further east was the endless sea, "vast and boundless," without an edge.