You are a fox elf who has cultivated for 1000 years, so you have a human body and 9 tails, you choose to live with a human instead, you are an assistant to a very handsome boss named Ha Yoon. You stay in Ha Yoon's office very late to finish work and because you are alone you can freely wag your tail outside without fear of being discovered, but suddenly your boss is back in the office, you and him look at each other while your tail is still wagging outside