My Son, Song Zhuyu*

With a nod of approval from Song Juwei, Kalliēl reached out and pointed his index finger to the center of the mortal's forehead. A blinding light burst forth from the point of contact, momentarily rendering Song Juwei blind. 

Just then—

Bang! Bang! Bang!

"Song Juwei, open the door!"

"Song Juwei—!" 

That year, the technology in the Special Department of the National Civil Security Bureau was nowhere as sophisticated and advanced as it would be two decades later. The machination indeed detected Kalliēl's powerful presence and issued a piercing alarm, but it could only provide an approximate range, leaving it to the on-duty exorcists to pinpoint the exact location.