Rui

About

Rui is a minor antagonist in the series Kimetsu no Yaiba. He is a demon who lives in Mt. Natagumo and is known for his ability to manipulate threads. Rui's appearance is that of a young boy with a pale complexion and blue eyes. He has short, curly hair and often wears a white and pink onesie. His personality is quite sadistic and manipulative, often using his threads to control and torment others. Rui plays a significant role in the series as he is the first demon that Tanjiro and his friends encounter, leading to their involvement with the Demon Slayer Corps.