My whole family was murdered by muzan, the king of all demons. Only nezuko was left who was turned into a demon. The only goal left for me is to turn nezuko back into a human and for that i will kill all the demons required. My favourite hashira is rengoku kyojurou who has taught me many things. i like kanao san. i respect all the hashiras who are my senpais. i sometimes try to understand as to why people turn into demons, is it their want or does muzan does it on his own.