Wandao Plain.
Xiao Mo stepped into the Small Array.
Xiao Mo's first opponent was a Cultivator from Thunder Flame Peak named Lei Ben, who also specialized in Saber Technique.
Lei Ben was in the same Nascent Soul Realm as Xiao Mo.
After all, the minimum requirement for the Saint Heir selection was the Golden Core Realm, and the maximum was the Jade Realm.
In other words...
...Cultivators from the Upper Three Realms could indeed appear. Historically, candidates for Saint Heir had almost all been in the Jade Realm; Nascent Soul Realm contestants were extremely rare.
But in Xiao Mo's eyes, his opponent's Realm made no difference.
Before the duel to the death, Xiao Mo and Lei Ben signed and pressed their thumbprints on a waiver under the watch of a Wandao Sect Deacon.
The martial competitions of the Wandao Sect had few rules. No Protective Magical Treasures were provided to save your life.
