Concern of the Kings
Looking over the three future generals that were chosen, Rex nodded his head in affirmation.
Of course, the three of them don't know their roles in the future yet as Rex hasn't told them upfront and it can still change sometime in the future. But with the gifts provided to them, it's clear that their new master intends to make them stronger.
Evolving their bloodline to a high-ranked is not something light as Adhara and the others perceive.
For them, that has already been within Rex's wing from the start find evolving to be a natural process that would be triggered as they get stronger. In reality, the process is not exactly kind and doesn't exactly work that way.
Any Supernatural that can reach higher than the seventh-rank realm is born to be strong.