Yamato suddenly lunged at him, and Sephiroth failed to react in time. There was absolutely no "malice" behind her actions.
"Wait!"
They were too close together. Before Sephiroth could do anything, she had already knocked him down.
"White Gilly!"
Who the hell are you calling White Gilly!?
After all, Observation Haki was an active skill, albeit one with a certain degree of "passive early warning."
(Otherwise, experts getting ambushed or eavesdropped on in the original story would make no sense.)
Experts in Observation Haki could also use autosuggestion to establish an "early warning."
It was similar to conditioned-reflex training, but could only be "set" to a single trigger or category.
Enel, for example, had set his "early warning" to trigger whenever someone said his "name." That was how he could "hit people through the internet."
Most experts trained this "early warning" to respond to things like "killing intent directed at them."
Sephiroth's situation was a little different. He possessed four sensory systems, each with its own distinctive "passive" effects.
[Electromagnetic Wave Detection]
It issued warnings for objects moving fast enough or possessing sufficient mass. Its maximum range was 2,500 kilometers, with warnings triggered in stages according to the target's speed and mass.
For instance, something with enough mass and speed heading toward Sephiroth would trigger a warning even from 2,500 kilometers away.
[Bioelectric Field Detection]
It detected biological signals and issued warnings when a living being stronger than an average Vice Admiral gradually approached. Its maximum range was 150 kilometers, with warnings issued in stages.
[Mantra/Observation Haki]
With the Rumble-Rumble Fruit's enhancement, its maximum active detection range was 400 kilometers. Passive perception, however, could only provide a "sixth-sense-like" warning at relatively close range.
[Emotion Absorption]
It sensed malice, triggering when that malice