After the neutral treatment contingency plan was completed, Kakashi proposed a faster method.
A paired set of Sharingan could lock onto the same point in space.
If the Masked Man briefly materialized the restriction around his heart, Kakashi might be able to use Kamui from Konoha's side to transfer the black core directly away.
They would not need to meet.
Nor would the Medical Squad need to enter the other dimension.
The plan sounded like the easiest one for both sides to accept.
But the Sealing Squad ruled it unworkable in the very first simulation.
Kamui could slice through space with precision, but it could not automatically distinguish which parts belonged to the cursed seal and which had already grown into the heart.
There was no clear boundary between the black core and the blood vessels.
What Kakashi's left eye saw was the chakra's target point.
What Obito's right eye endured, however, was physical tearing.
If the two eyes were even half an inch out of alignment, what was transferred might include not only the black core, but also the Ventricular Wall.
The Medical Squad placed the Blood Sample Model inside the Space Simulation Array.
In the first attempt, the core was successfully removed, but the white tissue immediately collapsed, leaving the heart without support.
In the second, the outer restriction remained, and Black Zetsu regrew the core through the residual nodes.
In the third, a minute discrepancy between the two eyes' target points split the entire model down the middle.
Not a single attempt allowed the patient to survive in stable condition.
Kakashi stared at the shattered model without speaking for a long time.
He had proposed this plan for more than just Kamui's convenience.
If he could do it across space, he would not have to wait for