Meanwhile, two dark, silent paragliders were flying fast at an altitude of two hundred meters.

This kind of silent paraglider used lithium batteries to operate the electric engine, so it did not produce the noise generated by the fuel engine when it was running.

Moreover, the fan blades of the paragliders were very carefully designed to produce very little air noise when running at high speed.

The Japanese ninja’s lack of strength was compensated for by modern equipment and technology, and th