C1919 Strength of the Special Hazards Unit

Yin Yushuang tried her best to suppress her excitement. She never thought that Han Zhen would be able to use his supersonic speed.

Even if Yin Yushuang had studied Han Zhen's information before she left, the fact that Han Zhen had broken through the speed of sound still made Yin Yushuang's eyes light up. That was information that the military did not have.

"Chinese Martial Cultivator