Itadori Yuji

Gojo and Geto's Past (Backstory)
This arc reveals the tragic story of Satoru Gojo and Suguru Geto. During one mission, they protect a girl named Riko Amanai. Despite their best efforts, Riko is killed by Toji Fushiguro. After this, Suguru Geto becomes disillusioned with the world of mages and humanity: he comes to the conclusion that since humans create curses, the world must be cleansed of them. Geto leaves college and becomes a curse master. Later, his body and abilities are possessed by another character, Kenjaku.

Shibuya Incident
One of the most ambitious arcs. A dark curtain covers the Shibuya district, trapping residents. Mages are ordered not to interfere, but Satoru Gojo infiltrates the area and encounters cursed spirits who have taken civilians hostage. Suguru Getou (under Kenjaku's control) and his allies (Mahito, Jogo, Hanami) are behind it all. Their goal is to seal Gojo in the "Prison Kingdom" to deprive humanity of its most powerful mage. Deadly Migration
Kenjaku, while in Geto's body, launches

"Deadly Migration" is a bloody battle royale that turns all of Japan into an arena. Its goal is to force humanity to evolve: the cursed energy from the battles is intended to move a barrier that will gradually cover the entire country. Ultimately, people's souls will merge into one, and their bodies will disappear. The game involves Yuji, Megumi, Maki Zenin, and Yuta Okkotsu. Yuji blames himself for the deaths in Shibuya. Megumi tries to save her half-sister Tsumiki, who has been taken hostage. Yuta, despite orders to execute Yuji, refuses and joins the game.

The Decisive Battle of Shinjuku
After a series of events, the allies manage to free Satoru Gojo. A climactic duel is scheduled: Gojo (the most powerful mage of our time) versus Sukuna (the most powerful mage in history). Their duel will determine the fate of humanity.
A few important nuances
The manga also has other significant arcs (for example, the story of Yuta Okkotsu, the confrontation with the Zenin clan).
Some events have deep backstories that are revealed in separate arcs.

Techniques and abilities
Superhuman physical strength and endurance: without techniques, he is able to punch through walls, throw heavy objects, withstand severe injuries and continue fighting.
Hand-to-hand combat: He is proficient in the Taido karate style; his signature move is the "Manji Kick," which was partly taught to him by his grandfather.
Cursed Energy and Control: Quickly mastered the basic principles of working with cursed energy under Gojo's guidance; can enhance his attacks with energy.
Black Flash: Capable of causing
Black Flash—an extremely powerful attack that releases cursed energy upon physical contact; in one battle, he used it four times in a row.
Reverse Curse Self-Healing Technique: Learned to use it to heal my own wounds.
Sukuna's Vessel: Being a vessel, he can partially use Sukuna's power, although he rarely uses "his techniques" directly and with limitations.
Absorption of Cursed Objects: Capable of consuming cursed objects. Blood Toxicity: In the future timeline, his blood acquires toxic properties.

Itadori Yuji (Magical Battle)
Age
At the beginning of the manga, he is 15 years old (born March 20, 2003).
In the "modulo" storyline (that is, in the future timeline shown in later chapters), Yuji is much older, but his appearance remains almost unchanged due to the influence of cursed powers and "Death Pictures" - he retains the appearance of a young man.
Actually, Itadori should be around 84 or a little less now...72, but he's still that guy who's around 17 or 20...who knows.
Clothing: Casual at the beginning (hooded jacket, pants, shoes); at the magic school, a uniform version: a black shirt over a red hoodie, black pants, red shoes. In the future timeline, the style becomes more utilitarian, often with a hood hiding the face.
Appearance
Build: Muscular, fit, but not bulky; height – 173 cm, weight – about 80 kg.
Face and eyes: large light brown eyes, expressive features; after the Shibuya incident, a scar between the eyebrows and a small scar near the lip (both from Mahito).
Hair: In the manga, it's chestnut-blond, cut short and spiky; in the anime, it's more pink.
Special Markings: When Sukuna takes control of Yuji's body, he gains a second pair of eyes and distinctive markings; some of these marks later disappear.
Learns and adapts quickly: despite initial naivety in the world of magicians, he grasps the essence of techniques and tactics and knows how to apply the advice of mentors.
He is capable of intense anger when faced with outright cruelty (such as hating Mahito after what he did to Junpei).