Grade of Renyuan Grade of Diyuan Grade of Tianyuan Grade of Lingyuan Grade of Mengyuan Grade of Daoyuan
I don't think they have said all of them. They said what the max for the human mortal realm was and all its grade but they didn't say what all the levels for the higher realm is, only that he was at the highest one. We'll know more when he meet more people from their. Maybe we'll learn some from the girl that he's gonna try to cure Mortality realm has 27 or 36 levels. Each grade have 9 levels. In total their are 81 levels and 9 grade