[You have successfully slain the Black Fall Emperor (late-stage Daoist Great Luo Immortal Realm) 692,872,400,811,223 years of life span]
Upon seeing the prompt before him, Gu An's mood instantly lifted.
The Black Fall Emperor was present as he manifested himself, which is why Gu An appeared, saving the need to use Karma Divine Power.
The reason the Black Fall Emperor descended in his true form was naturally not due to recklessness; rather, he had something to seek in the Heavenly Dao.
Now, Gu An, even without resorting to Soul Search techniques, could see through the past of the Black Fall Emperor, especially since they had made contact, grasping the hand for a moment, leaving nothing secretive about the Black Fall Emperor in his eyes.
This was the most life span he had ever seized, which also indicates that even the Dao Extreme Daluo Immortal is not immortal.
