If not now, when?
The swarm was completely scattered by the blazing flames of the Skyfire Axe, like headless flies, utterly disoriented.
This is undoubtedly the best moment to retreat.
As for staying behind, to completely eradicate the Soul Chasing Bees.
Chen Feng does not have such ambition.
Bear in mind, even if there aren't ten thousand Soul Chasing Bees here, there's at least eight thousand.
And that axe swing just now consumed all of Chen Feng's True Qi and only managed to eliminate less than two hundred, at best disrupting the swarm.
It won't be long before the swarm reestablishes order, and by then it will be exceptionally troublesome once more.
To completely annihilate this swarm, attacks of that magnitude would need to be unleashed dozens of times!
By then, Chen Feng would be exhausted to death.
Therefore, it's best to let it go. Being too greedy can be self-destructive.