From this, it seems that although each underwater nest in the lake produces fishman spawn, once these fishmen grow up, the professions they transform into are all exactly the same.
Faced with this situation again, Dong Tianyu no longer had the heart to probe. Looking at the flag that he'd confined within an independent space, perhaps it had been too long since it was separated from the fishmen, so the flag rather violently self-destructed.
Once the flag entered the independent space Dong Tianyu had specifically divided within the Cave, it began to tremble nonstop, and it was uncertain whether it acted this way because it couldn't hold back any longer.
In any case, as time passed, the trembling of the flag began to become more and more intense.
Even though the flag was trembling violently, Dong Tianyu thought that since he had already confined it within an independent space, it probably wouldn't cause any trouble.