Moreover, Ao Gu had made it clear years ago that he would need Gu Ran's assistance, and judging from his tone back then, this favor was obviously not an easy one to fulfill. Therefore, before that time came, it was natural for him to want to make himself as strong as possible.
In the end, there was always a deep curiosity in his heart.
Before reaching the first order, every level-up would increase the number of card slots in one's natal card booklet, adding a total of ten card slots from levels 1 to 10.
At the first order, one would awaken the Source Energy Card Slot, which bestowed special enhancements upon the Miracle Cards placed within.
At the second order, one would penetrate the source energy's full circulation within the body, and each level-up would completely open up a card slot, allowing it to be driven by Source Energy Points, no longer needing card points to activate it.