After the discovery of the mysterious aircraft taking off from Area 51, Yan Fei immediately felt a strong threat and, without any hesitation, fired an AIM-120 air-to-air missile to test the waters.
The mysterious aircraft seemed to be having problems; it just hung there in mid-air, its body continuously shaking and spinning as if the pilot inside was unable to control it. When faced with the incoming missile, it did not make any evasive maneuvers.
The AIM-120 air-to-air missile flew quickly and in a flash struck the mysterious aircraft. But what surprised Yan Fei happened next—the aircraft's blue glow suddenly intensified, forming a circular transparent light shield that enveloped the entire aircraft in blue light. The AIM-120 air-to-air missile did not actually hit the mysterious aircraft but was blocked by the blue light shield and then exploded. The missile's shrapnel scattered in all directions but was completely blocked by the blue light shield.