The Li Fire Essence scorched the Heavenly Demon Divine Soul. The Heavenly Demon immediately felt life slipping away rapidly and thought, "Damn it, if this roasting continues, I'll be dead soon."
Unable to think much more, the Heavenly Demon shouted, "Yan Rufeng, I am willing to be your servant..."
"Heh heh."
Yan Rufeng thought joyfully, "I didn't expect even the Heavenly Demon to fear something."
Yan Rufeng's expression changed. He harshly shouted, "Heavenly Demon, now I am going to imprint a soul contract on your soul. Do not play any tricks. It's best if you give up all resistance; you know what the consequences will be otherwise!"
Yan Rufeng did not withdraw the Li Fire Essence. He feared that if the Heavenly Demon repented during the contract imprinting, he might be counter-attacked by the Heavenly Demon's soul by mistake. By then, Yan Rufeng wouldn't even have tears to cry.