Jaehwan is a being who cannot be quantified by numbers and stats like most who he fights against, at least in the beginning. Thus finding a comparison to how strong he is using those numbers might make it seem shaky, which I thought at times.

Mino is discarded fairly fast; Sirwen's scene with entering Jaehwan's spirit, which was a fairly intimate act for Nightmares, did not have a development besides affecting Sirwen's emotions, that would only be mainly seen toward the end; Chunghuh's disciple Yurha switched sides, but it didn't seem to have much of an effect besides decoration; Karlton was used only for a single purpose, which in the end didn't even affect much;