Shinji had remained so cautious even after obtaining the Six Tomoe Rinnegan because he knew that the Ten-Tails' backlash was no joke!
With his current knowledge and experience, it wasn't hard for him to see that in the original timeline, Black Zetsu had been able to easily incapacitate Madara Uchiha—who had become the Ten-Tails Jinchuriki and risen to Six Paths level—with a single strike not only because of the power Kaguya had left him. He had also triggered the Ten-Tails' backlash inside Madara, leaving Madara unable to defend himself from both ends. That was how Kaguya Otsutsuki had used his body to resurrect herself!
So the Ten-Tails was both a treasure and a "time bomb" buried inside the body!
In a situation like this, no amount of caution was excessive. Shinji had held nothing back, immediately using his strongest ocular technique, the Imperial God Palace.
If he had been in Madara's place in the original timeline, he was confident he could have withstood Black Zetsu's "Black Tiger Steals the Heart."
At the very least, he could have slowed Kaguya Otsutsuki's resurrection through his body, then sought the Nameless One's help and used Chakra from outside his body to suppress the Ten-Tails' backlash within him.
Shinji's sealing of the Ten-Tails continued.
The Ten-Tails' Chakra reserves were simply too vast, and Shinji was determined to play it safe. Unlike Obito and Madara in the original timeline, who had hastily sealed the Ten-Tails inside themselves, he was attending to every step and every detail, determined to keep the beast under complete control!
Far away.
Whoosh.
A figure hurried across the snowy plain from the south, covered in dust from the road. When he saw the fully transformed Miko Shion, stationed on the southern flank and already in Miko Chakra Mode, he reluctantly stopped.