When I was very young, I lived with my father in a big mountain. I followed my father every day. He went to collect herbs and I went to play. My father has always told me, you have a husband-in-law who is in poor health. You need to learn medical skills to treat him. He was born with the disease in his mother's womb and it is difficult to treat him. If you learn it well, you can take care of him in the future. Therefore, I have been studying medicine with my father, and I have always known that I will have a frail husband-in-law. I want to treat him, take care of him, and keep him alive.