godadi
She was likely given such a hard trial that those of the acupuncture opening stage can't handle as a result of moving up 142 steps at once without a break. When she obtains the inheritance I wonder if that chasm will enter her dantian which will serve as a pool of additional energy.
plot twist .... the inheritance ground was a conspiracy to create an undead army by an ancient evil. jk. the real reason she is struggling is because she is fighting an entire stage alone with what 3 martial arts moves. the others would have battle arrays and like dozens of martial arts at least not to mention weapons and treasures. she is like a super computer with nothing installed.