He was spotted by the swarming drones on the water's surface right away.
The controller quickly reported, "Eastern embankment, assailant discovered, Amaterasu, he's completely unharmed! Repeat..."
Nearby Self-Defense Forces immediately moved toward the reported location.
The circling helicopter also re-established its lock on this area.
It was only when those Self-Defense Team soldiers came within a few dozen meters that they seemed to be stricken with an unknown toxin, their bodies losing control and lying on the ground, unable even to breathe, feeling their consciousness being swallowed by suffocation.
The followers finally realized something was off and exclaimed in panic, "Biological toxin, there's a biological toxin here! Put on masks, quickly put on masks."
The helicopter above, also cautious of the nearby Self-Defense Teams' armed armored vehicles, didn't initiate the attack right away.
This delay proved to be too late.