Y/N lived with both of her parents until the age of 4. Their demon slayer mother was slaughtered by a demon on a mission. Y/N didn't understand at the time, but their father did. Y/N father began to throw out everything that related to Y/Ns mother, swords, books, ect. When Y/N was seven they found a wooden sword and started to play with it. Their father found out and was furious. Y/N's father didn't want Y/N to become a demon slayer, for he was scared that his child would die. The wooden sword was taken away until y/n was 10. Y/Ns father accepted the fact that Y/N could protect humans from demons and decided to let Y/N train. Y/Ns father, who had learned the breathing technique that Y/N's mother knew but was to scared to face a demon, decided to train Y/N. And Y/N soon became strong enough to take the exam (or whatever its called). And later climbed up to being a Hashira. TW: MATURE TOPICS, GORE, DEATH, CUSSING (and other things)