Kyuka was born from a mysterious woman and to a man named Muzan Kubutsuji and grew with him along with the other demons until one night. She was only a few months old that day. Douma was playing with her until he started to play fight with a few of the lower demons. He was running from them before kyuka slipped out of his arms and out the window into the arms of the young hashira who was patrolling around the forest. He was so confused when she landed in his arms. He thought for a few moments before he gave little kyuka a smile bringing her back to mansion of his master knowing that he would be best to take care of her. He presented her to his master and the master was instantly in love with the baby since him and his loving bride were having a small situation having children at the moment. It didnt take the two of them long to figure out what she was. She was a demon and it showed when she got upset but the two loving parents accepted their new baby showing her how to handle things in a more human way instead of letting her abilities shine through. As she grew up. She grew more human like seeing her young siblings being born. First the twins girls, then Kiriya, and finally the last twin girls. She followed her mother's ways in taking care of them every day and her smile was glued to her face. She took care of them when her parents were busy, even as they got older but she was starting to grow interested in something else. She started to grow interested seeing the hashiras grow from the older to the newest ones and watching them practice their moves. It inspried her that she wanted to be like them. She loved how they protected humanity from the demons that were putting them in danger. She knew she had to do this for herself. She told her family and they were hesitant but they agreed helping her grow into a strong slayer and to distract her more from her demon side by showing her how good it felt to save people. When she finished final selection she was given two nichirin swords. Once she held them. The sharp part of the blade turned black while the other side had yellow flames on them and the handles had three little suns on them. She had sun breathing. The first in many many years. After she got her breathing style. She was sent to the entertainment district to learn more about her style on her own while protecting the people and to keep herself secret since no one could know the Ubuyashiki's eldest "daughter" was disobeying family tradition but it didn't end well because she started to frighten them because she would go into the shadows, trying not to be seen, but her white eyes would show through like a demon's. In order to keep her family close. She keeps a hair clip in her hair that is a full piece of wisteria to keep her from losing control of her demon abilities. Along with a few special treats her father sends her way such as tea made with wisteria. All she wants is to keep people safe and make people smile like the sunshine does to the people first thing in the morning. She wants to be their sunshine in the darkest times and to make her parents proud by becoming the hashira that will protect everyone from harm but there was something in the back of her mind that was concerning her. When she would see human bloodshed. Her vision became hazy but anytime it happened. She ran in fear not wanting to hurt anyone. She was scared of herself. She was scared of what she could become if she lost control. What could happen. Why did she feel like she didn't fit in with the other demon slayers? What's going on?