Zhou Tian's sole purpose was fundamentally just to instill panic among the demigods, and as long as he possessed the ability to kill demigods, he would then have achieved his goal. In that particular situation, although the demigods had made some preparations, he couldn't guarantee that nothing would change, but relying on his confidence in his own strength, Zhou Tian ultimately decided to take action against that group of demigods who were largely unguarded.
As a result, given the situation at the time, since Zhou Tian was already prepared to strike, he certainly wasn't going to be polite to that group of demigods.
Thus, once Zhou Tian made that decision, he suddenly burst from hiding and immediately launched an attack on the group of demigods without another word.
And Zhou Tian's strength was well established. When he was fully prepared and unleashed his full strength, it was no easy task for the demigods to fend off his assault even with their capabilities.