The Ultra-capable In A Comet

"What the hell is that?" 
A faint ominous feeling went through Chen Chen's heart as he looked at the colorful circle that appeared beside the moon in the sky. Was it really a new type of lunar eclipse? But his instinct told him that something was going to happen, and it was right. After a few minutes, all the systems in the world got shut down. In a world where the presence of the SYSTEM was important in everyone's everyday life, the failure of the SYSTEM caused great panic. 
But that turned out to be just the beginning...
A comet named Fancy? A terrorist attack? Aliens invaded the Earth? Evolution? Special abilities? 
Under unknown circumstances, the whole world went into a huge change...