@darasu Power levels in xianxia manhua (Chinese magical/immortal hero stories and comics) are based on what level of 'cultivation' you're at. Cultivation is the method of strengthening your soul through physical and spiritual training, while also deepening your understanding of all things in the universe. China's holy number is 9 and multiplications thereof, so there's usually at least nine 'levels', and usually three sub-levels to each level. They can be named anything, but those sub-levels are referred to as 'low'/'middle'/'high'. A high rank 3, for example, is stronger than a middle rank 3, even if the distance isn't insurmountable, the high rank 3 has the advantage.
But individual cultivation ranks themselves are supposed to be worlds apart. A rank 3 fighting a rank 4 is pretty much a guaranteed L for the rank 3. The names and powers afforded to the ranks themselves depend on the story. The basic premise is, though, that at the end of the path of cultivation (or maybe the start of the true path) is godhood. A mortal becoming immortal, all-powerful, all-seeing, removed from the world to play with it instead of being bound to living in it.
The wolf is of the 7th heavenly realm here, rank 7. Apparently this jerk from the other Guardian Lord's palace brought several rank 7s, maybe a rank 8 with him.