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Running away in itself wasn't difficult, but if a ferocious beast capable of easily tearing you to shreds was chasing you, and you couldn't run too fast, having to always stay on the edge of being caught to keep the enemy hanging, then it truly tested the escaper's strength.
In the bamboo slip given to Lancelot by Han Tianzun, a great deal of content was related to escaping: usable cultivation techniques, preparations beforehand, and practical experience... Everything came in handy at this moment. The human knight swam through the demon army's ocean like a fish, while the persistently pursuing Abyss Demon Refinement was like a gigantic whale, crushing anything in its path.