Barrier: The Boundaries of Terminus

After forming the required hand seals, Shichirou Kohaku then creates a barrier, of any size, around himself. Unlike most barriers, this one allow others to pass through easily and doesn't allow Shichirou to detect those within the respective area, as this barrier serves another purpose. This barrier, unlike the others, doesn't allow any ninjutsu based attack to penetrate it; any ninjutsu will simply disappear upon contact with the barrier.