To become a NPC Subpath you need Ox Karma or above, and have become a Dog linguist, then go to Baek in the scroll shop north west corner of kugnae and say your paths totem god to him (Baekho rogue, Jujak mage, Hyun moo Poet, Chung ryoung Warrior)
After this Go to north buya and go above the gate and west until you find a tree and a place with a lot of rabbits walk around until you get a popup that says you see a rabbit and it smiles at you, make sure he smiles otherwhys you need more karma, then go to the Dog that teaches you your spells (Warrior Dog = Kug fox cave, Mage dog = Kugnae Taverns, Rogue dog = Buya fox cave, Poet dog = Watcher Tree), say Secret to them, and choose yes.
Next go back to baek and say your totem god again, he will ask for a couple items and such, 1 Mythic Favor 10 Splendid Tiger pelts and 1bil xp (1,000,000,000) say your totem god again Bold textONLY IF YOU HAVE ALL THE THINGS OTHERWHYS YOU LOOSE STUFF AND ITS NOT FUN
After you give him the required things he will make you your NPC subpath hooray time for mass huntage.
To leave say Cleanse to your Dog and they will remove you but you loose Karma