Daekol found it hard to believe, but he was forced to nevertheless. The human had somehow found a way back. He clearly had countless contingencies in place, proving that he was a formidable enemy that should not be underestimated. If that wasn't the case, he would not have survived, and he certainly would not have been able to take back his body despite all of his preparations.
Daekol did not get angry, though admittedly he did feel frustration at his repeated failures. He suppressed that frustration as quickly as it appeared, however. Instead, he used the momentary respite to analyse the situation and discover his mistake.
From the start, it seemed like his greatest mistake was to underestimate the human. It seemed to Daekol that the human had anticipated that Daekol would underestimate him, and used that to his own advantage.
