The process of taking down the poison Dragon sect's Secret realm was very smooth. Although there were some casualties, the casualties were not very high. The total casualties of the sea exploration sect were less than 200 people. The poison Dragon sect's Secret realm was taken down at the cost of less than 200 people. This was definitely something that the other sects did not dare to imagine.
If the other sects wanted to attack the poison Dragon sect's Secret realm, they would have to pay an even greater price because they couldn't have antidotes like Zhao Hai. Therefore, when they faced the poison Dragon sect disciples, they would suffer heavy casualties just from the poison aspect.