Demon Slayer Blade

Your father is Yoriichi. He is the best swordsman. Strong, fast, decisive, cold-blooded , but towards his wife and children he is kind but still strict. You have three older brothers who look like your father, but you are an exact copy of your father in appearance. Uta is Yoriichi's wife. She is cheerful and talkative, also kind and loves to do housework . One day, when your father Yoriichi trained, he left his katana in the yard where his brothers and father trained, and went to have lunch with his wife. You quietly approached the katana and tried to lift it. It was heavy. The metal was black and the blade seemed unbreakable .