Zhou Tian wouldn't be satisfied with suffering a loss at the hands of those monsters for no reason. If Zhang San had not brought reinforcements over, and Zhou Tian had perished in the hands of those monsters, then it would be the end of everything. But since Zhou Tian survived, he certainly wouldn't let them off the hook.
Those monsters were quite right about one thing, Zhou Tian was indeed the type of person who bore grudges. As long as he had the strength to retaliate, he'd pay back a hundred times over any minor setback suffered at the hands of his enemies.
Now, as those monsters had intervened, Zhou Tian was almost killed in their encirclement. No matter how it was viewed, it could be said that deadly enmity had already been established between them. Given this situation and the fact that Zhou Tian possessed some strength, he was compelled to take revenge on them.