However, just having a highway isn't enough. While Nova's journey would indeed be much smoother than the muddy path designed by Bal, the problem is that, despite the road change, the final destination remains the same: the vast group of demi-humans, equivalent to a very long distance in a straight line, still making it an incredibly long highway.
Continuing to walk this distance on foot, whether it's tens or hundreds of kilometers, Nova's fate is still predictable. Besides the consumption of power, it would cause irreversible wear on her body, leading to a loss in levels.
So how to continue solving this problem?
The answer is also very simple.
Lena's method to help Nova "save effort" is to teach the dragon lady how to transform her power form, equivalent to constructing a "car" on the "highway".