Li Yao had the experience of being invaded by the alien strength of the Blood Stripe Virus. Or rather, the invader lingered on to this day and combined with his negative emotions to turn into the "metal devil". Therefore, his and the mental devil's senses were very keen about the foreign invasion. No uncanny force could have escaped their detection, including the strength from the Supreme Emperor.
Unable to figure out anything wrong after much groping, Li Yao could only slowly withdraw his own strength. Loosening his grip on Li Jialing, he asked suspiciously, "Didn't you feel anything wrong at all when you absorbed the strength of the Imperial Fire Pearl so fast?"
"Nothing at all!"