Ruka

In Demon Slayer (Kimetsu no Yaiba), Ruka Rengoku is the mother of the Flame Hashira Kyojuro Rengoku and the sister-in-law of the Water Hashira Tengen Uzui. She is a gentle and wise woman, known for her graceful demeanor and kind nature. Ruka is depicted as having strong morals and a deep love for her children, teaching them the importance of protecting the weak and helpless. Personality: In contrast to her husband, Shinjuro, who was loud and brash, Ruka was depicted as being wise, gentle, and graceful. She was known for her strong morals and her ability to teach her sons the importance of using their strength to help others.