The range of the Life-Reviving Gu isn't very large. From Zi Yuan's perspective, it currently only works within Jiangming City. Once you leave Jiangming City, the Gu's ability becomes ineffective.
If you spread magic power beyond Jiangming City, or even further, it would be easy to discover this.
Moreover, the time reversal is very short. By comparing the speed of magic power consumption inside and outside Jiangming City, you can accurately deduce the reversal time.
It's seven minutes and thirty-six seconds.
It's unclear whether it is fixed at seven minutes and thirty-six seconds, or if it simply only reversed for that amount of time.
But from the situation, it seems Chi Lian would surely not hold back in such a near-death situation.
Of course, even without comparing the differences in magic power, Zi Yuan could guess it.
In fact, any experienced normal person should have thought of it the moment they saw the Gu insect.
Spring and Autumn Cicada.
