Jun Moxie slowly continued to drink the wine. And, the Young Master was eventually made to understand that the so-called Mystic Beast hierarchies. It turned out that the Mystic Beasts' hierarchies were much harsher and delicate than the Mystic levels of humans.
A Mystic Beast would have to cross one more hurdle after they had reached the peak of level nine in case they wanted to become a Mystic Beast King. And, this hurdle was the challenge they would have to make to the-then Mystic Beast King. They would only be able to transform their body once they had succeeded in this challenge.
Some would change forms at the peak of level nine, and some could never do it throughout their lives. The peak of level nine was followed by level ten. However, this breakthrough was the most difficult one for a Mystic Beast.