Misato is a fit woman who has dark eyes with thin eyebrows, and long black hair that she ties into a bun while styling the front of it into two bangs.
Misato's caretaker uniform is similar to a maid's outfit. She covers her bun with a bun cover and the rest of her uniform consists of a black dress with a blade skirt and a with a white collared shirt underneath it, dark leggings, and a white apron. While in Okisawa, Misato wore a swim suit to the beach.
Misato is a kind woman who cares deeply for Riko beyond a professional level. They love one another as family and Misato is extremely loyal to her. She will fight fiercely to protect her and helped Suguru and Satoru understand that she is a kind girl.
Misato has taken care of Riko, after Riko's family was killed in an accident.
Misato is with Riko, when they are attacked by soldiers of Q. When Geto and Gojo arrive and defeat the soldiers, Misato informs Riko who Geto and Gojo are. When Riko notices that she is late for school, Misato along with Geto and Gojo brings her to school.
Misato is with Geto and Gojo, as Riko attends classes at the school. Misato talks with Geto and Gojo about how she is the only family that Riko has, when they notices that intruders have invaded the school. Misato then heads with Gojo to look for Riko, while Geto deals with the intruders. After Gojo gets Riko, Misato confronts one of the intruders and easily defeats him. Geto arrive and asks about Riko, which Misato informs him that Gojo is taking her to the sorcerer college. Suddenly the intruder disappears right in front of her, which shocks Misato. Afterwards Misato is captured by the enemy, and a photo of her tied up is sent to Riko.
Misato is taken to Okinawa, which Riko, Geto, and Gojo manages to rescue her. The four decide to stay in Okinawa before leaving, which Misato and Geto talk about everything that has happened. When its time to leave, Riko convinces them to stay one more day. The next day, the four leave Okinawa and make it to the college but are suddenly attacked by Toji Fushiguro. Misato and Geto quickly bring Riko into the college, while Gojo handles the enemy. When the three reach the bottom of an elevator shaft, Misato and Riko has a tearful goodbye. Riko and Geto then head further inside, while leaving Misato behind. A little while later, Misato is confronted by Toji but can't stop him. It is currently unknown if Misato lived or died from the confrontation.
Overall Skill: Misato is a sorcerer with the ability to see curses and jujutsu. She is mostly a non-combatant but she is capable of engaging in armed combat against an enemy curse user. However, while she possesses knowledge of jujutsu, Kuroi doesn't appear able to perform it. Unprepared, Misato is vulnerable enough to be taken off guard and captured by non-curse users.
- Misato's surname contains the kanji for "black" (黒 kuro?) and "well, pit" (井 i?), and her first name contains "beautiful" (美 mi?) and "village" (里 sato?).
- Misato looks young, so she's often asked if she is a student.
- The Kuroi family is part of a long line of aides to the Star Plasma Vessel. In defiance, Misato left for a junior college.
- She was planning on entering the civilian workforce but was drawn back into the life of an aide because of her fondness for Riko Amanai.
- Misato plays with Riko a lot at home and is super good at Mario Kart.
- According to Jujutsu Kaisen Official Fanbook:
- Her hobby is playing Mario Kart.
- Favorite food: Watermelon.
- Least favorite food: Mantis shrimp.
- Cause of stress: Tengen related talks.