Capítulo 762: Arrival Of A Familiar Group

Regardless of these actions, Gustav was still unable to be found, so he was glad he made the right decision by teleporting to this place.

"That was unexpected," Gustav was still surprised that the MBO had the capability to use something similar to Life Sign tracking.

It wasn't exactly the same with his, but the similarities could not be overlooked. 

At the time it was activated, his forehead burned with a symbolic glow, and they were instantly able to pinpoint his location.

The energy the beam emitted was also similar when he activated Life Sign Tracking.

His wouldn't cause the forehead of a person to glow up, but he would have to copy the invisible symbol ingrained deep in their forehead and picture it to find the person.