So what the hell? It turns out you need to download Sybaris first and extract it to CM3D2 root directory. Before that, I realize there is no Sybaris folder in CM3D2 directory. You just need to copy the mod files to \Sybaris\GameData in your CM3D2 directory or folder. But actually the steps itself is so easy. It was pretty difficult to find a proper guide to install the Mod without HF Patch. Your preferences might be different from me.
It’ll make the game run into less trouble. Other than that, I prefer to keep the game much cleaner from foreign patch, unless it is a mod. Simply because HF patch managed to messed up my game files. I was searching for how to install Mod in Custom Maid 3D 2 without HF Patch.