This kind of rank advancement doesn't require any promotion tasks. It can directly elevate soldiers to super-tier.
But even if a task is necessary, Lin Rui wouldn't mind at all.
If tens of thousands of soldiers from the Golden Pansy Domain advanced simultaneously, the enemy would be dumbfounded on the battlefield. The situation would be directly taken over by the soldiers of the Golden Pansy Domain, easily helping the empire crush all sorts of monstrous foes.
