When Amelia entered the dimensional gate, most of the awakened humans didn't notice the anomaly that entered the dimensional gate but a few of the ten SSS-rank awakened humans present had noticed it.
In their vision, an unidentifiable moving object entered the dimensional gate. Although they didn't know whether it was a human or a mythical creature that entered the dimensional gate, it still gave them fear and anxiety that such a powerful creature was living in secrecy on planet Earth.
If not for this incident, they might not even know that someone who was fast enough to kill them existed on planet Earth. Because of that wake-up call, the SSS-rank awakened humans were further motivated to become stronger!