The Embryonic Gaze was the demonic innate skill that Song Shuhang had acquired after becoming a Profound Sage in the Netherworld Realm.
Ascending to the Profound Sage Realm in the main world would grant one some light of virtue, while doing so in the Netherworld Realm allowed one to acquire the demonic innate skill that most suited them.
...It might be because Song Shuhang had used the Impregnating Gaze on everyone in the universe while he was delivering his Demon Sage Speech that the innate skill he ended up obtaining was the Embryonic Gaze, which matched the Impregnating Gaze.
The Embryonic Gaze was a magical technique that could forcefully transform the target into their embryonic appearance. It was similar to the sheep transformation technique or chicken transformation technique of the ancient witch system.
The exact duration of the transformation technique depended on the target's resistance to magical techniques and Realm.
