I Am the Most Doggy in the World

Zhang Tuo, a junior student, accidentally obtained a mysterious Gou Sage system and has since reached the pinnacle of his life! Shenhao? I have unlimited cashback function, you can get it instantly with just a touch of your finger! A martial arts master? Believe it or not, I can stare you to death with just one glance! Top beauty? I don't even look at it! What else do I want to do in such a peak life? Right! I want to be the most stubborn person in the world!