Red, blue, green, sky blue, and even pink and yellow lights continuously lit up in the darkness at the top of the hotel building, causing Chu Nan's face to continuously change color.
If anyone else ran to the roof at this moment, their first reaction would probably be that this place was haunted.
However, if a martial artist with enough ability to sense spatial energy was here, they would discover that as every light flickered and every color changed, the surrounding spatial energy would always produce different changes and fluctuations. It represented the different control changes of the cultivation method Chu Nan was continuously changing.
However, if they discovered this fact, it would only surprise them even more.
