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This was the tacit understanding that had formed between the two sides over seven years.
The Devil Gate needed time to hang on by a thread, or to wait for a turn of fate.
Meanwhile, the Righteous Path was afraid that the Devil Gate, desperate as a cornered dog, would fight with deadly resolve, damaging both friend and foe. They were slowly draining the last of the vitality and lifespan of the three old fellows who had crawled out from their coffins, like the proverbial frog boiled in warm water.
Besides, even though the Four Sect Alliance had been established for seven years, it was still not completely united, not yet returned to the glory of the Immortal Alliance era; the Four Sects were still constantly adjusting their cooperation.
To prevent the Alliance from dissolving unexpectedly, or even descending into internal strife, they needed an external enemy.
For all these reasons, the current tacit understanding had arisen.