Unfairness.

"Until then, you will be training with Magical Beasts."

After hearing those words, Raven and Blaze only hoped that they wouldn't be put against even more Rank-9 Beasts. 

Fortunately for them, Ozul didn't want them half-dead every day. He led them to places that were abundant in Beasts around Rank-8.

Though he only made them fight those Beasts in the upper levels of Rank-8. Anything less than that would be too easy for them.

They moved from places to places fighting peak Rank-8 Beasts. Their progress was slow, but they were improving at a steady rate.

What both of them needed now was power but experience, and they could only gain it slowly. There was no shortcut to gaining experience.

The more they fought, the more their bodies got used to fighting. Slowly, they had started to make instinctual movements during the battles as well.