Kyojuro Rengoku (煉れん獄ごく 杏きょう寿じゅ郎ろう Rengoku Kyōjurō?) is a major supporting character of Demon Slayer: Kimetsu no Yaiba and a major character in the Mugen Train Arc. He is also a Demon Slayer and the Flame Hashira (炎えん柱ばしら En Bashira?) of the Demon Slayer Corps.
Kyojuro is a young adult of tall stature and athletic build. He has long bright yellow hair with red streaks with two shoulder-length bangs and two chin-length bangs on the side of his head, black forked eyebrows, and golden eyes that fade to red with white pupils.
Kyojuro wears a paler brown version of the regular Demon Slayer uniform, which consists of a brown gakuran jacket, a white belt around his waist and hakama pants. Over this, he wears a haori with a white-yellow gradient pattern and red flame-like ridges at the end that his father Shinjuro once worn and more than likely his father worn when they were the Flame Hashira respectively. Finally, he wears red tabi socks with yellow flames erupting from the bottom-up, with a pair of white zōri with red straps.
Kanao Tsuyuri (栗つ花ゆ落り カナヲ Tsuyuri Kanao?) is a major supporting character of Demon Slayer: Kimetsu no Yaiba. She is a Demon Slayer in the Demon Slayer Corps, Shinobu Kocho's Tsuguko and the adopted sister of Shinobu and Kanae Kocho.
Kanao is a young girl with large, gentle eyes of a pink-lilac color that are framed by thick eyelashes. She has thin black hair, worn tied into a ponytail on the right side of her head and fastened by a pink and green butterfly ornament that once belonged to her adoptive sister, Kanae Kocho. She has a straight fringe and two loose, chin-length strands that curve downwards from above each of her ears.
Kanao wears a slightly purple-tinted version of the standard Demon Slayer uniform, just with a knee-length pleated skirt in place of the usual hakama pants. Over this, she wears a short white cloak, fastened on one side by a dark pink triple knot, also sporting knee-high lace-up white boots with tan soles, heels and toes.
When Kanao reappears after the events of the Entertainment District Arc, her appearance changes as she stops wearing her white cloak, opting to wear only her plain Demon Slayer uniform instead.