Yuji is a muscular teenager with big light brown eyes and light brown spiky hair. After becoming a host for Sukuna, a small line appeared below each of his eyes.
At the start of the series, Yuji wore a light-colored hooded jacket, black pants with bottoms of it are rolled up, and white shoes.
After Yuji enrolled into the Tokyo Metropolitan Curse Technical College, he began wearing his version of the uniform: a black long sleeve shirt resembling a gakuran over a red hoodie, black pants, and black shoes.
Yuji is a fair person who cares greatly for not only his comrades, but anyone he views as people with their own wills, despite how deep or shallow his connection to them is. He cares greatly for the "value of a life" and to this end he will ensure that others receive a "fair death". He is easy to anger in the face of pure cruelty and unfair judgment of other people.
One of Yuji's defining traits is his willingness to sacrifice himself for others, triggered by his grandfather's last words to him to die surrounded by others. When Megumi and him were about to be killed by a curse, Yuji swallowed Sakuna's finger in order to exorcise it and save them, despite just meeting Megumi for the first time.
Yuji is famous for his superhuman physical abilities, earning him the nickname "Tiger of Middle School" before becoming a shaman.
- Strength: He is able to destroy walls without a problem and can throw a lead ball with enough force to bend a soccer goal. Yuji has also been able to throw several cars in succession at a person.
- Durability: Yuji's durability surpasses the average shaman - he was still able to fight the special-class curse after losing a hand and multiple fingers.
- Speed and Reflex: He can finish a 50-meter track within 3 seconds. When students from Kyoto School tried to murder him, he was able to dodge the attacks of all five opposing shaman.
- Intelligence: Yuji is a curious person, tending to ask many questions to his instructor. He is also good at progressing - being quick at Satoru's Movie Appreciation Training, and realize Aoi Todo's guide quickly. According to Akutami, he is best at cooking among the trio of the First Years. Yuji has shown that he can easily master a weapon with a short amount of time.
- Hand to Hand Combat: Yuji is a skilled combatant that can make quick judgments and power blows. Yuji can make refined attack, like stopping his attack just before it hit and adjust his power within his fist.
- Poison Resistance: Since Yuji is the host to Sukuna, the King of Poisons, he has a resistance to all kind of poisons. Yuji will feel the pain from the poison, but he is largely unaffected.
Yuji was not trained for weapons, however, due to his physical power and intelligence, he can still master one quickly.
- Slaughter Demon (
屠 坐 魔Tozama?): A charm weapon given by his instructor Satoru Gojo, originally belongs to Maki Zenin, is effective against curses. It was destroyed by a special class curse.
Curse Power and Techniques
Cursed Technique: His curse power is from the parts of the special class curse Sukuna. Currently, he mainly uses the power to reinforce his punches, increasing their impact.
Shaman Techniques: These technique are ones that any shaman is capable of using.
- Divergent Fist (
逕 庭 拳Keitei ken?): After Yuji lands a punch on a target, his curse power flows and makes a second impact.
- Black Flash (黒閃 Kokusen): A technique that any shaman is capable of using, but so far, no shaman is capable of using it at will. When a shaman makes an impact of Cursed Power within the span of .000001 seconds of a physical hit, space is distorted and the cursed power flashes black. The power of Kokusen is on average 2.5 times that of a normal hit. Currently, Yuji is capable of using Kokusen four times in a row, and has performed it a total of 6 times.
- Yuji is 173cm tall, and according to Akutami, will continue growing.
- Yuji weighs about 80kg, but his body fat percentage is in the single digits.
- Yuji loves watching TV.
- He has a huge repertoire of half-cocked impressions.
- He isn't picky about food.
- Yuji isn't actually a hoodie guy, but wears it because he can be indecisive.
- His type is "a tall girl with a big butt... like Jennifer Lopez".
- Yuji ranked 1st place in the manga's 1st Character Popularity Poll with 21,735 votes.