But as Inuyasha's Sister, What Did I Do Wrong?

I used to be a human, but now, it's hard to say, half human, half dog, in their words, half demon. It doesn't matter what my previous name was. What's important is that my name is Liuliwan now. By the way, it would be perfect without the word "maru". It doesn't matter if you haven't heard of me. What's important is that you must know my brother and my younger brother. By the way, my brother's name is Sesshomaru, and my brother's name is Inuyasha. I often wonder, as Inuyasha's sister, what did I do wrong? Intent: Relaxed, funny