After silently mocking his enemy, Sasori turned his attention back to the Underground Palace ahead, his expression gradually darkening.
Three days earlier, Zou Hyuga and the others had brought him here.
Back then, this place had been nothing more than an underground cavern. But soon afterward, he had witnessed Zou Hyuga turn that cavern into this magnificent Underground Palace.
At his peak, building an Underground Palace would have been no great challenge for him, but it would have taken at least several months. He could never have done it so quickly.
The power Zou Hyuga displayed when creating the Underground Palace reminded him of their organization's leader, Pain. Other ninja always paled somewhat in comparison.
He did not know why a ninja like that would hide his strength, or why he would target the higher-ups of his own village.
But Sasori did not dwell on it. He, too, had killed the Third Kazekage and defected from Sunagakure.
Withdrawing his gaze from the darkness, Sasori looked down at his own steel body and could not help letting out a few sighs.
This was his new puppet body, and also the cage that imprisoned him. Its capabilities rivaled those of a human puppet, yet it had not been made from a ninja's body.
According to Zou Hyuga, his body had been modified from Chakra Armor, while its weapons were scientific ninja tools. The small devices contained numerous miniature Sealing Scrolls. Once activated, they could unleash large amounts of ninjutsu without the need for hand seals, requiring only a tiny amount of chakra.
It was an utterly ingenious design, more than a decade ahead of Sunagakure.
If this technology could be introduced among puppeteers, their combat power would increase severalfold at the very least. Even someone like him, who preferred human puppets, would