The Sage of Six Paths suddenly felt a trace of regret. He should not have chosen this moment to reveal himself.
His brown hair stirred faintly with his mood, covering the two small horns on his forehead as though trying to shut out Black Zetsu's questioning.
But it was all in vain.
A venomous glare passed through the glass door and fell directly upon his face, making his Rinnegan slowly turn as he carefully studied the laboratory's layout.
A glass cage made from the God Tree imprisoned the failed products Mother had hurriedly created.
Various containers lay quietly arranged within it, holding tree seeds likewise cultivated from the God Tree, as well as tiny fry that clearly contained Tailed Beast chakra.
Tobirama was quite impressive.
He had actually embarked upon the path of creation, just like him.
Though compared to himself, he was still somewhat inferior.
Rather than using Yin-Yang Release, he relied on ninja methods and scientific theories to create things.
But there was nothing wrong with that.
A sense of gratification rose from the depths of his heart. The Sage of Six Paths stroked his long brown beard and, amid Black Zetsu's furious rebukes, secretly sighed that this was all something he had played around with long ago.
His ever-expanding senses instantly allowed him to understand how the present-day Shinobi World differed from that of a thousand years ago.
So it was already the era of Ninja Nations.
Having long learned to feign deafness and dumbness, the Sage of Six Paths smiled at the enraged Black Zetsu before leisurely waving the staff in his hand toward the void.
The metallic chime of its rings swaying was like droplets striking water, causing the air to ripple like water without a source.
"What is this?"
Sensing the chakra fluctuations, Tobirama