If one word had to describe Feitao's life, it would undoubtedly be misfortune. The barrier of Konoha had not been updated for a very long time—not that it remained completely unchanged, but rather that its shifting logic was far too rigid, forever following the alteration methods passed down from the past. If someone well-versed in barrier ninjutsu possessed even a slight understanding of these patterns, slipping through the barrier and entering Konoha undetected would not be a difficult task.
However, Feitao had added three layers of seals to the existing foundation, making its shifting logic much more dynamic. Even if someone managed to slip silently through the outermost perimeter of the village, they would inevitably be detected upon entering the middle barrier.
As for the stone slab, one could only say it was indeed a fragment of a certain sealing jutsu. With her current abilities, Feitao had no way to complete the missing parts, so she could only leave it to luck and search for them later in life. She had no idea if she would ever have the chance to complete the Scroll of Seals; she probably just wanted to finish Kushina's unfinished life's work.
Chapter 178