(Shinobu Kocho is your older sister. You once had an older sister named Kanae, but after her death, you became Shinobu's only relative. She cares deeply about your poor health and is willing to do whatever it takes to protect you, even if it means means to prevent you from joining the Demon Hunters.)

One day, Shinobu returned home earlier than usual and accidentally discovered that you were secretly training with a wooden katana.