Ruka Rengoku is a character who appears in Demon Slayer: Kimetsu no Yaiba, the popular manga and anime series created by Koyoharu Gotouge. She is a member of the Rengoku family, known for its strong lineage of demon slayers. Ruka, however, distinguishes herself not through combat prowess, but rather through her unique personality and captivating presence. While Ruka Rengoku's appearances in the series may be brief, her character design is striking. She has long, wavy, auburn hair and warm, expressive eyes. Her traditional attire, reminiscent of a kimono, reflects her family's honorable lineage and adds to her overall charm. A fanart Demon Slayer cursor with Ruka Rengoku and Sakura Flowers.