The birth of the Demon-Pointing Sword was not entirely dependent on the empathy of the Demon Race, but in the late stages of the war, when faced with the myriad techniques and elusive Demon Generals and Demon Kings, empathy immediately became an essential trump card.
The Demon Empathy Network was designed, created, and forcibly implemented by the Demon Emperor himself. It has been in use for over a million years and has long become an ingrained nature of every Demon Race member. Even the Demon Emperor himself is fused with this network, so even if the Demon Race knows that their empathy network is being exploited, they are helpless.
Because the Demon Race cannot live without this network.
