Yila also roughly understood that the Merfolk are similar to Demon Dog Trainers, belonging to the class of Summoners, and perhaps a large part of their combat power comes from their pets.
These include the Shield Shell and the swordfish, which seem to imply a combat style that combines both offense and defense.
As for fishing, Yila doesn't need to use tagging to count fish numbers anymore, since the fishing nets used by the Sea Demons are wide enough to let small fry through and are also actively returned to the sea.
It seems that the Sea Demons understand the principle that one should not drain the pond to get all the fish... Many other Demons may not be aware of this, but the Sea Demons themselves know it well.
Some things don't need to be explained to them. Before Yila could tell them, the people (the Demons) had already figured out the rules of survival on their own, even truths that were explored since ancient times.
