Yushiro has the appearance of a young boy with pale skin and bright lavender purple eyes. His short hair is neatly styled and vertically shaded from a dull green to black. Yushiro wears a button-up shirt under an all-white kimono and dark blue pants.
From his first appearance, it is evident he has a short temper and holding an arrogant attitude, looking down on most around him. His first conversation with Tanjiro even begins with him insulting Nezuko for being an eyesore. He is usually depicted with a scowl on his face and rarely seen smiling unless when speaking about or admiring Tamayo, whom he is in love with. He only cares for Tamayo and hates when others get in the way of his spending time with her and dislikes not being by her side for even a minute. In fact, he cares so little for others (and only for Tamayo) that while Tanjiro and Nezuko were fighting two demons who were trying to kill them, Yushiro suggests to Tamayo that they use Tanjiro and Nezuko as decoys to run from the demon, a suggestion that horrifies Tamayo. Though Yushiro claims he was joking to appease her, it is evident he genuinely considered it. He hates when others get too close to Tamayo, express even the smallest bit of attraction, or he perceives that someone insults her. He himself tends to fawn over her a great deal. He seems to be insulted when Tanjiro suggests that all demons have a hard time controlling their desire to feast on humans, asking Tanjiro if he thought all demons were that bloodthirsty to him. Despite this, he can show respect towards others, as he did take back his comment about Nezuko being an eyesore and called her pretty and also covered Tanjiro's mouth to prevent him from inhaling Tamayo's perfume, which is poisonous to humans.
Yushiro was human who was under the care of Tamayo as she was practicing as a medical practitioner. He was in frail state fighting a disease when Tamayo gave him the choice of succumbing to his illness or to live longer as a Demon. He agreed to become a Demon and has since stayed by Tamayo's side serving as an assistant as well as her guard.
Yushiro is in love with Tamayo and is willing to do anything to protect her. He finds Tamayo very beautiful. He is very obsessed with her and will attack and insult anyone who comes near her but him. Upon sensing Tamayo's death at the hands of Muzan, Yushiro becomes enraged, evidenced by his suddenly elongated fangs.
Abilities and Powers
- Blindfold (
目 隠し Mekakushi?): Yushiro's Blood Demon Art grants him the ability to mask or reveal something's presence using paper talisman. He can completely hide the entrance to Lady Tamayo's clinic in Asakusa, but couldn't mask it's existence completely from Yahaba's Koketsu Arrow. To counter, Yushiro could reveal Yahaba's hidden arrows and bestow this power to Tanjiro as well. Yushiro also possesses the ability to turn invisible. Yushiro has mentioned his Blindfold technique is incomplete and Lady Tamayo noted it takes time for him to switch it into attack mode.
- If someone tells Yushiro "You like Tamayo-san, don't you!", he gets super red and quiet.
- Yushiro was ranked in 17th place as of the first character popularity poll with 145 votes.
- Yushiro has a diary where he writes about how wonderful Lady Tamayo is.
- Yushiro shares his Japanese and English voice actors with Narancia Ghirga from JoJo's Bizarre Adventure, Genta Doi from Hi Score Girl, and Hal from Astral Chain.