No matter how strong Zhang Yi's Tree-man Corps was, it couldn't escape a fundamental weakness.
The Tree-man Corps was afraid of fire!
Although over the course of their long evolution, many Tree-men had developed defense mechanisms against fire,
such as the firefighters of the Tree-man branch—the Paulownia Tree-men.
Paulownia Tree-men could absorb water and various minerals from the soil. Inside their bodies, they processed these materials to synthesize a viscous, non-flammable foam solution that could insulate against air.
When a fire broke out nearby, or when they sensed flames burning anywhere,
the Paulownia Tree-men would move to the location of the fire.
Then, using the pressure generated by their trunk fibers, they would spray a large amount of the foam solution forward
from specific points on their branches, like pores or apertures,
with a maximum range of ten meters!
In fact, when faced with an uncontrollable inferno,
