A violent demonic energy resonated in the air, with a fear inducing effect. Even with the Black and Red World between, Big Luo could detect that immense power.
What made him feel especially uneasy was that the wavelength of that demonic energy felt both strange and familiar at once.
Strange because he had never before came into contact with it in person, but familiar because the demonic energy wavelength coming through mimicked that of Big Luo's, with a high degree of similarity.
Certainly, there were differences, but they were no doubt from the same origin.
"Hades..." Big Luo thought, as he immediately recognized it. His expression became complicated. Though he has played in his mind what might happen, if he met with someone from his own clan, it still made Big Luo feel overwhelmed and emotional when all this actually happened.