Picked up a Little Ancestor at the Beginning

Gao Yan was just a down-and-out clerk. One day he saw a little girl standing in the middle of the road. Worried that something might happen to her, Gao Yan took him to the side of the road. Unexpectedly, this mysterious little girl relied on him... Only he can see the seemingly harmless little girl, and her fighting prowess is off the charts. Fortunately, the little girl has always taken good care of him: "Gao Yan, how can you live in such a bad house? I have some gold here, you can use it to exchange for a better house." "Your body is too weak. I have a mental training method here. You can use it to practice. When you have time, I will make you a medicinal bath to strengthen your physique." "How dare you scold you for being incompetent? I'll teach you a set of Five Elements Acupuncture, and you will be a miracle doctor from now on." "Wouldn't it be embarrassing for me to be beaten? I'll teach you a set of boxing techniques..." It seems... This little ancestor is pretty almighty, but "Don't have a girlfriend? What do you think of me... How am I young? It's just that my cultivation has been suppressed and I look like a child..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.