It's not that Lu Ye wants to place the battlefield in the Qingli Dao World, but if he follows the previous route to enter the Jade Conch Galaxy, the first to bear the brunt is the Qingli Dao World.
This realm is not far from the geomagnetic turbulence zone. Although Zixuan's target is the Nine Provinces, if they break out of the geomagnetic turbulence zone and discover the Qingli Dao World, just a random move from a Sun Blaze cultivator would lead to devastation for all living beings.
Of course, if they don't discover it, or even if they do but don't care, there naturally won't be any risk for the Qingli Dao World.
But no one can guarantee such things.
Therefore, the battlefield must be chosen at a location before Zixuan's battalion reaches the Qingli Dao World, preferably blocking them at the exit of the geomagnetic turbulence zone.
