C94 Yang Ling Was Furious

Suppressing his excitement, Yang Ling quickly inquired, "System, how do I upgrade this skill?"

"Ding! To upgrade this type of skill, you'll need between 10 to 50 Wish Value points each time."

"The skill's power will increase tenfold after the upgrade."

"The levels range from Lv. 1 being the lowest to Lv. 5 as the highest