After learning the Qi Observation Art, Lu Chengchuan spent fifteen years of his lifespan to master it.
This martial art had only one level. Once learned, it was complete. After that, its usefulness depended on the practitioner—the higher the practitioner's realm, the more applications the Qi Observation Art had.
The instant he mastered the Qi Observation Art, the world Lu Chengchuan saw changed completely.
First were people. He could see the Qi inside Zhou Yaning and the others: wisps of white Qi flowed through their bodies, followed by strands of blue energy.
Everyone's Qi differed in size and activity, and the blue energy was the same.
This is... Qi? Lu Chengchuan murmured to himself.
This sensation was unprecedented. The Qi Observation Art truly was miraculous. Lu Chengchuan studied Zhou Yaning and the others with great interest. Based on the strength of their Qi and blue energy, Zhou Yaning was surprisingly the strongest among the six of them. No wonder she could be captain.
Zhou Yaning and the others were all focused on the view outside the window and did not notice Lu Chengchuan observing them.
On the distant horizon, a mass of black fog was rolling toward them at a visible speed. The black fog had entered the city.
Before the black fog swept into the city, the military had deployed to maintain order. Though the citizens were panicked, there was no major chaos, and at least no riots broke out.
But the fear continued to grow. The citizens returned home and waited for an official explanation.
After half an hour, the black fog finally rolled in from afar and engulfed the Investigation Bureau building. Every signal vanished in an instant. The ceiling lights began to flicker before finally going out, plunging the room into darkness.
Before anyone could react,