Utahime has long blackish-purple hair that extends down her back, with some strands ties behind her head, thin eyebrows, and a scar the right side of her face that crosses the bridge of her nose.
Utahime wears a traditional miko outfit with a white colored top and a red colored bottom, along with brown colored boots.
On her day off, Utahime wears a dark colored baseball hat, light colored overalls over a dark colored low cut long sleeved shirt, and dark colored shoes.
While Utahime was a student, she wore her hair in two pigtails and had no scar on her face, but still wore that same miko clothes.
Years ago, Utahime is conducting a mission with Mei Mei when they get trapped within the spirit's barrier. As the two discuss what to do, Gojo shows up and frees them from the barrier. Utahime gets angry at Gojo, which causes her to not notice the spirit that is about to devour her. Geto appears and summons a spirit that devours the spirit that was about to devour Utahime. Shoko then shows up and asks if Utahime is alright, which Utahime responds saying she is glad to see her. After the mission is complete, Utahime and Mei Mei head back to the college.
Kyoto Goodwill Event Arc
Utahime arrives at Tokyo along with the Kyoto students and staff, to attend to the Kyoto Goodwill Event. As the Kyoto students start to insult one another, Utahime arrives and tells them to instead, fight with each other. Utahime then wonders where Gojo is. Gojo arrives and reveals that Sukuna's host, Yuji, is alive. Utahime then meets with Gojo, who tells her that there is a spy working with cursed spirits and that he wants her to investigate the Kyoto college for leads. When Utahime asks why he wants her to investigate since she could be the spy, Gojo replies that she doesn't have the nerve to which causes her to attack him.
Utahime later meets up with the other staff member to watch the event. Just before the event begins, Gojo has her make a speech to the students but doesn't give her enough time for one. While watching the event, Utahime wonders why the students don't just get along, Gojo responds by saying that they get it from her. When Miwa is put to sleep by Toge, Utahime becomes worried and decides to go get her. When all the talismans burn red, the spectators all believe that there is an intruder. Utahime along with Gojo and Yoshinobu decide to head over to the site and deal with the problem.
As the three head over to the site, they notice that a screen is covering the site which Utahime tells Gojo to head in before the site is fully covered. When Gojo says that the site is already covered, the three stop right in front of the screen. They decide to test out the screen and find out that Gojo is the only one that can't enter, both Utahime and Yoshinobu head inside. Once inside, the two encounter Juzo Kumiya and Yoshinobu decides to take him on. As Utahime heads towards the students, she encounters another intruder. When Mai and Nobara shows up to assist Utahime and the screen is lifted, their enemy decides to run away.
Once the intruders have been dealt with, Utahime attends a meeting with the other staff members about what had happened. After the event is finished, Utahime heads back to Kyoto along with the students and staff.
The Origin of Obedience Arc
Days later, Utahime is contacted by Gojo, to find out if she had found any new information.
Shibuya Incident Arc
Utahime meets up with Gojo, Nobara, Megumi and Yuji where she tells them that they suspect that Mechamaru is the mole. Utahime reveals that Mechamaru's real name is Kokichi Muta, and explains how his puppet manipulation ability works. As they reach the room were Kokichi is suppose to be at, they find out that he is not there and come to the conclusion that Kokichi is the mole.
- Utahime's surname contains the kanji for "hermitage" (庵 iori?), and her first name contains "song" (歌 uta?) and "princess" (姫 hime?).
- Utahime ranked 21st place in the manga's 1st Character Popularity Poll with 1,369 votes.
- Utahime's hobbies are watching sports and going to karaoke.
- Utahime enjoys drinking beer.
- Utahime is friends with Shoko Ieiri (whom she wants to quit smoking).