They stopped the attack, and looked at Chaos.
Unfortunately, at the same time, Chaos' father arrived and saw everything. He felt disgusted, seeing his son being able to use the power of Abyss.
Unfortunately, no matter how disgusted he felt, he couldn't get himself to hurt his son. He made Chaos take a heavenly oath that he was never going to use this power again!
In essence, he made his Eldest Son live the life of a mortal, even though the abilities he awakened were the most powerful and never seen before.
Because of that oath, Karyk never used his abilities to control the Abyssal Beasts, and even tried to avoid using other Abyssal Abilities. He accepted being detected by everyone.
To avoid the hate he received, he started staying inside his house more and more, barely going out.
Slowly, he learned how to use the abilities of ordinary gods as well, albeit he was very bad at it.