What Kind of International Joke Are You Kidding? I Traveled Through Time and Became Erha

I dressed as a husky, and was also bound to a weird system that allowed me to leash the dog if I didn't want to eat it. Looking at the indescribable things in the yard, I fell into deep thought. The golden retriever next door laughed at me for being stupid, so I pawed and buried its secret bones in the litter box. Until one day, the system suddenly prompted: "The feces of ancient mythical beasts have been detected. After eating, the humanoid experience card can be unlocked." I rushed towards the target excitedly, only to find that piece of "magic excrement" being put under the spotlight at the pet expo booth...