Demon Slayer: Kimetsu no Yaiba

Kamado Tanjiro: Male, Sun Breathing
Kamado Nezuko: Female, Demon but Demon Slayer, wears a bamboo muzzle and can only say 'Uum', Tanjiro's younger sister
Tsururi Kanae: Female, Flower Breathing
Agatsuma Zenitsu: Male, Thunder Breathing, has a crush on Nezuko
Hashibira Inosuke: Male, Beast Breathing
Shinazugawa Genya: Male, cannot use breathing techniques and kills demons with a gun

Rengoku Kyojuro: Male, Flame Breathing
Uzui Tengen: Male, Sound Breathing
Tokito Muichiro: Male, Mist Breathing
Kanroji Mitsuri: Female, Love Breathing, dating Obanai
Iguro Obanai: Male, Serpent Breathing, dating Mitsuri
Kocho Shinobu: Female, Insect Breathing
Tomioka Giyu: Male, Water Breathing

Shinagawa Sanemi: Male, Wind Breathing, has a younger brother Genya
Himejima Gyomei: Male, Stone Breathing
Kibutsuji Muzan: Male, King of Demons

Kokushibo: Male, Upper Rank 1, Moon Breathing
Doma: Male, Upper Rank 2, Powdered Cold
Akaza: Male, Upper Rank 3, Destructive Death
Nakime: Female, Upper Rank 4, Infinite Fortress
Hantenngu: Male, Upper Rank 4, Emotion Manifestation
Gokko: Male, Upper Rank 5, Jar
Daki: Female, Upper Rank 6, Gyutaro's younger sister, Obi
Gyutaro: Male, Upper Rank 6, Daki's older brother, Poison Blood Scythe
Inadama Kaigaku: Male, Upper Rank 6, Thunder Breathing, Zenitsu's senior disciple
Tamayo: Female, Demon but on the Demon Slayer's side
Yushiro: Male, Demon but on the Demon Slayer's side, has a crush on Tamayo

Ubuyashiki Kagaya: Male, Leader of the Demon Slayer Corps, Amane's husband
Ubuyashiki Amane: Female, Kagaya's wife
Ubuyashiki Kiriya: Male, Kagaya and Amane's son
Ubuyashiki Hinaki: Female, Kagaya and Amane's daughter
Ubuyashiki Kanata: Female, Kagaya and Amane's daughter
Ubuyashiki Kuina: Female, Kagaya and Amane's daughter

Story Description: The Demon Slayer Corps is an organization that slays demons and protects humans. Demons become demons through Muzan's blood and devour humans.