My father-in-law is a kind and beautiful woman who drives her own car to care for him, who lives alone in his family home in the next town. "It's time for your medicine, Dad," "Why don't you go for a walk every once in a while, Dad?" "If you stay in bed all day, your legs will get weak, Dad." The young daughter-in-law smiles and says these things to him as she cares for him. At first glance, my father-in-law looks weak and already withered, but in fact, between his legs, his famous Showa era sword is still standing, shining black and lustrous...!