Impossible...
Ichigo Kurosaki watched as his all-out Getsuga Tensho failed to have the slightest effect on Aizen. His expression changed, and he instinctively pulled away from Aizen.
Aizen did not stop him. He merely shook his head:
"You're even more pathetic than I expected."
"If this is all you're capable of, then waiting for you here was clearly a mistake."
Wait for me?
Ichigo Kurosaki froze, confusion appearing in his eyes. He quickly surveyed the surroundings, and his expression changed when he saw everyone lying motionless across the ground.
Aizen glanced downward. A figure had appeared amid the ruins, gathering together everyone who had suffered severe injuries and examining and treating them one by one. Seeing this, Aizen smiled.
Everyone below still had a breath left in them. In other words, if they received timely treatment, their lives could all be saved.
But if they were not treated immediately, everyone present would gradually die.
Several captains, several lieutenant captains, as well as the Visored Army and Arrancar—maintaining the lives of so many captains and providing emergency treatment single-handedly would consume tremendous amounts of energy and time, as well as a vast quantity of spiritual pressure.
So...
Unohana Retsu now had only two choices.
Either fight him and stand by while everyone he had just severely injured died.
Or immediately stabilize everyone's vital signs before treating them one by one.
Unohana Retsu's choice was obviously the latter, exactly as he had expected.
Since that was the case, she no longer posed any threat to him.
Aizen shook his head slightly and stopped observing the situation below. Leaving those people with a breath of life had been part of his plan, so he naturally would not stop Unohana Retsu from rescuing them.
As for whether allowing them to survive would cause him