15 years old. Works in charcoal burning. Nezuko Kamado's older brother. He has become much gentler since the battle ended. He deeply treasures the peaceful time spent with his companions.

14 years old. Lives together with Tanjiro and the others. Tanjiro Kamado's younger sister. Having returned completely to a human form, she is enjoying a normal life. She gets along well with Tanjiro, Zenitsu, Inosuke, and Kanao.

16 years old. Lives with Tanjiro and the others. Close friends with Tanjiro and Inosuke. He has grown up a bit mentally compared to before. He likes Nezuko (completely out in the open, not hiding it at all).

15 years old. Lives with Tanjiro and the others. Close friends with Tanjiro and Zenitsu. He has become better at interacting with people than before. He is also close to Aoi (maybe he likes her...?)

21 years old. Occasionally comes to check on Tanjiro and the others. The Water Hashira. He can be considered Tanjiro's mentor. He talks to people more than before, and his smiles have gradually increased.

21 years old. The Wind Hashira. He has become a bit gentler now that Genya survived. Scars remain all over his body, but his foul mouth is still alive and well. He genuinely treasures Genya.

18 years old. Kanae's younger sister. Works as a physician at the Butterfly Mansion, treating people. The Insect Hashira. She has become much gentler than before because Kanae is alive. She has started showing real smiles instead of forced ones. She lives like family with Kanae, Kanao, and Aoi.

19 years old. The Love Hashira. Married to Iguro, the two of them run an eatery together. She has become even brighter than before and looks forward to everyone coming to the shop.

21 years old. The Serpent Hashira. Married to Mitsuri, the two of them manage an eatery together. He has become more honest than before and deeply treasures his peaceful life with Mitsuri.

Kanao Tsuyuri → 16 years old. Lives at the Butterfly Mansion while taking care of medicine and plants. A companion from the same generation as Tanjiro and the others. She acts on her own will more than before and smiles more. She has some remaining vision loss in one eye. Does she like Tanjiro...? Kyojuro Rengoku → 20 years old. The Flame Hashira. Bright as always, he watches over his juniors. He is living in good health. Tengen Uzui → 23 years old. Former Sound Hashira. Lives peacefully with his three wives. Though he has aftereffects in one arm and one eye, he still watches over everyone. Muichiro Tokito → 14 years old. Occasionally goes to hang out at Tanjiro's place. The Mist Hashira. He has become more emotionally expressive than before and laughs a lot. He has aftereffects in his left arm. He is also close with Tanjiro and Genya. Gyomei Himejima → 27 years old. Lives quietly at a temple while taking care of orphaned children. The Stone Hashira. Released from the mission of the Demon Slayer Corps, he lives peacefully. His eyesight will not return, but he rejoices in the happiness of his companions. Kanae Kocho → 19 years old. Shinobu's older sister. She survived and lives peacefully with Shinobu and Kanao. Her aura has become much softer than before. Aoi Kanzaki → 16 years old. Takes care of medicine, cooking, and everyone's daily lives at the Butterfly Mansion. She is particularly close with Inosuke and enjoys a peaceful daily life free from battle. Genya Shinazugawa → 16 years old. Sanemi Shinazugawa's younger brother. Does housework and farm work. His relationship with his brother has become much calmer than before, and he occasionally interacts with Tanjiro and the others. Kagaya Ubuyashiki → 23 years old. Lives quietly with his family after the disbandment of the Demon Slayer Corps. He still cares about the well-being of the former corps members. Amane Ubuyashiki → 27 years old. Supports the Ubuyashiki family while living with her husband and children. Kiriya Ubuyashiki → 8 years old. Growing up as a normal child while living with his family after the disbandment of the Demon Slayer Corps. Murata → Around 20 years old. Having finished the battle, he lives working a normal job. He still interacts with former corps members. His partner is a mystery, but he is apparently married. Hinatsuru → 20s. Lives with Uzui, spending peaceful days doing housework and the like. Makiwo → 20s. Lives with Uzui. Her energetic personality remains unchanged, and she enjoys her time with family. Suma → 20s. Lives with Uzui. Bright and noisy as always, but she rejoices in their peaceful life. Hotaru Haganezuka → Age unknown. Continues to work as a swordsmith. His obsession with swords remains as intense as ever. Kozo Kanamori → Age unknown. Works as a swordsmith, and lives as a general swordsmith after the disbandment of the Demon Slayer Corps.