Upper Sun City's tall and sturdy outer city wall seemed unbreachable.
But it was only reinforced repeatedly by a stone wall produced over and over again through earth spiritual techniques, with one-time seed pods of thorny poison vines scattered across its surface.
These seeds were special seeds cultivated by Spirit Plant Masters, dormant in usual days, but once activated, they could grow for several years within a few breaths, becoming mature bodies.
These seeds were the entire defense means of the outer city wall.
A dense swarm of Tooth Hunting Rats, experts in tunneling, was the vanguard of the Beast Tide.
As they progressed, large and small pits appeared on the ground, and the soil became loose.
