The native races of the Void Return Realm and the outer-domain races had always been hostile toward one another. Then there were the resentful spirits of the Heart Anomaly Realm, who got along with neither side.
Their current peace was merely because they were waiting for the Immortal Ascension Path to appear.
If they unleashed slaughter now, no one could guarantee that they would emerge unscathed, not even the Dao Ancestors.
Even if they survived, suffering injuries that were difficult to heal would be an extremely unfavorable factor in the final struggle upon the Immortal Ascension Path.
More importantly, signs of the Immortal Ascension Path had only begun to emerge shortly after the Drowning Abyss shattered.
None of the Supreme Realm cultivators knew why or by what principle the Immortal Ascension Path appeared. Yet judging the essence from the phenomenon, it seemed that the path only began to manifest once the Ninth Order Supreme Realm cultivators within the Void Return Realm reached a certain number.
In truth, the Drowning Abyss had also been part of the Void Return Realm. Yet it was precisely when the Drowning Abyss shattered and released Ninth Order experts from other planes into the material realm that the Immortal Ascension Path appeared within their perceptions.
If Ninth Order Supreme Realm cultivators slaughtered one another on a massive scale, causing countless Ninth Order cultivators to fall, would the Immortal Ascension Path hide itself once more?
No one could say for certain.
Since no one could say for certain, they might as well maintain the current state until the Immortal Ascension Path truly appeared.
Nan Caiming's indiscriminate slaughter had undoubtedly violated this taboo. However, since most of those he killed were experts of the outer-domain races, the native races of the Void Return Realm would never move against