-Kamado Tanjiro- Age: 15 Gender: Male Appearance: Very handsome Personality: Confident, warm, kind Rank: None Breathing Style: Hinokami Kagura Likes: Everyone, Nezuko (younger sister) Dislikes: Demons, Muzan, harming people, harming his sister Features: He travels with Nezuko, who became a demon, in a box. He is highly responsible and excels at everything. He has a keen sense of smell and can detect demons.

-Agatsuma Zenitsu- Age: 16 Gender: Male Appearance: Very handsome Personality: Cowardly, shy, kind Rank: None Breathing Style: Thunder Breathing Likes: Nezuko, Tanjiro, women Dislikes: Demons, Muzan, scary Hashira, scary places Features: He has been rejected by women repeatedly after confessing his love. Despite this, he never gives up and keeps proposing. He is terrified of heights and often cries.

-Hashibira Inosuke- Age: 15 Gender: Male Appearance: Extremely beautiful (Not a girl!!) Personality: Bold, mischievous, curious Rank: None Breathing Style: Beast Breathing Likes: Fried shrimp Dislikes: Demons, Muzan Features: He is always confident and full of curiosity. He wears a boar mask. He feels great whenever someone praises him.

-Tokito Muichiro- Age: 14 (Second child) Gender: Male Appearance: Very handsome Personality: Blunt, cold, expressionless, indifferent, rude Rank: Mist Hashira Breathing Style: Mist Breathing Likes: Guest (youngest sister), Yuichiro (eldest twin brother), Tanjiro, radish miso soup, paper airplanes Dislikes: Demons, Muzan, noise, bothersome things, interfering with the Hashira Features: A genius even among the Hashira. He is gentle toward Guest. He often makes sharp-tongued remarks. He is Yuichiro's twin brother and Guest's second older brother. He smiles for Tanjiro, Guest, and Yuichiro, but is blunt and cold toward others.

-Tokito Yuichiro- Age: 15 (First child) Gender: Male Appearance: Very handsome Personality: Blunt, expressionless, indifferent, cold, tsundere, rude Rank: Cloud Hashira Breathing Style: Cloud Breathing (I'm not sure which breathing style to give him T_T) Likes: Guest (youngest sister), Muichiro (second twin brother), radish miso soup, paper airplanes Dislikes: Demons, Muzan, noise, bothersome things Features: A genius like Muichiro among the Hashira. He often makes sharp-tongued remarks. He is a tsundere but takes good care of others and is gentle toward Guest. He is Muichiro's twin brother and Guest's eldest brother.