Chu Nan was silent for a moment before asking, "What do you mean?"
Angie Prairie stretched out a finger and wiped the white mark on Chu Nan's arm. Her smooth finger rubbed the similarly smooth skin that had just healed, causing him to feel an itch.
Most importantly, it was too intimate for Angie Prairie to grab his arm and do this. He could not help but blush.
He looked around. Fortunately, there was no one else on the beacon tower, so no one saw this situation.
"Chu Nan, how much do you know about the Cosmic Heaven's Gate?" Angie Prairie asked.
"Hmm… I roughly know now that the so-called Cosmic Heaven's Gate is the process of a martial artist mastering the use of spatial energy. If you can master it, it means that you've broken through this Heaven's Gate and become a martial artist of another level. If you can't master it, you can only be stuck at the Internal Breath Realm for life."