"What are you doing, Big Brother?" the young Sage cried in surprise. He wanted to stop him, but it was already too late.
Vast and holy chakra surged into the sky from the elder Sage's body. The world of death, which had known nothing but grayish white and silence since time immemorial, was instantly illuminated. Ethereal, sacred singing resounded above the immortal mountain as a terrifying attack condensed to its utmost limit. With the changing hand seals of the Sage, it tore through space along an invisible passage left behind countless years ago and struck toward some unknown dimension.
After launching that attack, the Sage slowly withdrew his chakra. The singing and the dazzling light faded at the same time, and this world returned to its deathly stillness.
"Big Brother, I'm afraid this wasn't a good idea," the young man said softly from behind him.
The Sage did not turn around. With a solemn expression, he said, "Hamura, I had no choice. Before this, we could only vaguely sense the situation in the Main World. Especially after the chakra clone I left behind was destroyed by that Uchiha junior, our awareness became even weaker.
"We cannot grasp every detail of the Main World. We can only sense broad changes—for instance, that he successfully broke through the boundary and reached our level, or that he once entered the space where Mother was sealed.
"But that is far from enough. For us here, the price of interfering with the affairs of the Main World is simply too great. It was only when he entered the palace I left behind that I could sense what he was doing.
"You should understand the purpose behind my dividing Yin and Yang and condensing the five chakra origins. I scattered those origins across various places so