Sanemi

Sanemi is a tall, muscular, and slender man. He has silver hair and deep purple eyes. Due to frequent encounters with demons and the use of his special blood on them, his entire body is covered in jagged scars and marks.

He wears a black version of the standard Demon Slayer uniform, unbuttoned to reveal his chest and abs, over which he wears a white, long-sleeved cape with the kanji for murder etched on the back, white buckles on his shins, and tabi socks with a pair of white zori with green straps. Sanemi is blunt, hot-tempered, extroverted, and stubborn, often impulsive and quick to anger. He is often indifferent to others and can easily lose his temper. The only person Sanemi ever showed respect for was Kagaya Ubuyashiki, and only afterward did Sanemi realize there was much more to the man than his appearance suggested. Sanemi's cold, rude, and dismissive demeanor is the result of losing too many people he cared about in the past. Later, when he sees those who have died, like his mother, he can't help but smile at her, wanting to see her again. When Gyonya joins the Demon Slayers in search of Sanemi, Sanemi hurls verbal abuse at him, but Tanjiro can tell Sanemi didn't truly hate him; in fact, he still felt the same brotherly love for him as they had as children. However, this was never expressed outwardly, as he tried to push Gyonya away from himself and the Demon Slayers so he wouldn't be in danger. Tanjiro is ultimately right about Sanemi. Despite Sanemi's mistreatment of his brother, Genye, he truly loved and cared for his brother. He even says he wishes Genye would settle down and start a family.