On the Yanhuang Continent, the most basic knowledge is as simple as drinking water when thirsty or eating when hungry: a person can only possess one type of Universal Momentum in their lifetime.
All signs indicate that Luo Lie is the "Dragon in the Crotch," and the most crucial evidence is the Universal Momentum.
If it's Mountain Momentum, then Luo Lie is destined to have another identity.
If not? Hmm, no one has considered the possibility that it's not.
