The continuation of the Yu Clan's bloodline naturally requires a sufficient Yu Clan lineage, but it also requires the stimulation from external ancient clans.
Only when both conditions are met can the power of the Yu Clan's bloodline continue to be passed down.
This is why the Yu Clan set their sights on Yun Qingluo.
However, while the Yu Clan can determine the strength of their own clan's bloodline, they can't detect whether outsiders possess the bloodline of other clans.
This is the key to Yun Qingluo's plan succeeding.
"But weren't we all born in the clan back then..."
"Don't forget that mother's strength back then was also a Hollow Vacuum. If she wanted to do something discreetly, unless an Earth Immortal personally supervised, it wouldn't count. And during the ten months she carried you, mother's docile behavior evidently made the Yu Clan people relaxed and off guard."
"Was this also part of mother's plan?"
