Once the fissure on the Lunar Surface opened, the existing Containment had only a quarter of an hour left.
Two pale eyes searched simultaneously for a foothold in reality.
The Backup Stone Cocoon at sea provided a body.
The Demonic Statue of the Outer Path provided the Ten-Tails' structure.
The remnants of Kamui provided space.
Nine links to the tailed beasts provided dispersed chakra.
Konoha's old site preserved the earliest coordinates in reality that Black Zetsu had successfully opened.
If any one of those routes opened completely, Kaguya's consciousness could cross over from the Lunar Surface.
Gen did not create another shared master seal.
A single seal meant a single point of control.
Black Zetsu would only need to breach one holder to obtain every condition he needed.
Gen instead transformed the existing refusals into separate, nonoverlapping barriers.
Each of the Nine Tailed Beasts closed one of its own links to Unification.
The Jinchūriki separately closed the host's side.
Neither could substitute for the other.
When a tailed beast refused, its village could not force the link open through its Jinchūriki's body.
When a Jinchūriki refused, the tailed beast's power could not be extracted simply by provoking it, either.
The Land of Rivers only confirmed that the nine links were not established simultaneously, without touching any individual seal.
The Five Nations each shut down the Lunar Surface techniques under their own control.
No nation needed to surrender its complete methods.
They only showed two other parties that their chakra output had stopped.
Even if someone secretly retained a route, the other nodes would not automatically open because of it.
Black Zetsu soon forged a signal indicating that one tailed beast link had been restored.
The old centralized seal would automatically relay the anomaly to every node and request joint reinforcement.