User of the Ten Shades

Jujutsu Kaisen takes place in a modern Japanese world where negative human emotions generate Cursed Energy, which accumulates in locations and forms Cursed Spirits (curses) visible only to sorcerers. Jujutsu sorcerers combat these curses using this energy for supernatural techniques, maintaining the balance between the normal and the hidden world.

Cursed Energy:
Cursed Energy arises from negative emotions such as fear and hatred, being manipulated by sorcerers to strengthen the body, create barriers, or develop unique innate techniques. Techniques like Simple Reinforcement increase physical strength, while Reverse Cursed Energy heals via positive energy; expansions of mastery represent the pinnacle, guaranteeing precise hits on a barrier.

Wizards and Schools:
Jujutsu sorcerers, rare and trained in institutions like the Tokyo Jujutsu Technical School (led by figures like Satoru Gojo), exorcise curses with cursed weapons or inherited techniques. Ranks range from 4 (weak) to Special (elite like Gojo); students like Yuji Itadori learn basic control to combat threats like Sukuna.

Curses and Classification:
Cursed Spirits are born from condensed Cursed Energy and evolve with human fear, classified from Grade 4 (simple) to Special (like Mahito or Sukuna). Cursed Objects, such as Sukuna's fingers, attract curses; exorcism destroys them, releasing residual energy.

Jujutsu Clans:
Major clans include Zenin (Megumi's Ten Shadows technique), Gojo (Satoru's Infinity), Kamo (blood manipulation), and smaller clans like Itadori. They control lineages of innate techniques, with internal hierarchies and influence in jujutsu society; internal conflicts affect the fight against ancient curses.

Divine Dogs:
The Divine Hounds come in pairs (white for quick attacks and black for brute force), track curses, and devour enemies with sharp fangs. If one dies, the survivor evolves into "Totality" (Kon), gaining extreme speed, claws, and balance in attack, defense, and support.

Nude:
Nue is a giant bird with electric wings that release shocks to paralyze or attack in an area, as well as fly while carrying the user. It serves as an aerial distraction or a base for fusions like the Unknown Abyss.

Gama (Sapo):
Gama uses its long, strong tongue to capture, immobilize, or rescue allies, making it versatile in tactical support. It can merge with Nue to create winged frogs that restrict high-speed movement.

Great Serpent (Orochi):
The Great Serpent emerges from the shadows to ensnare and crush large targets in surprise attacks, with its flexible and resilient body.

Maximum Elephant:
The Maximum Elephant generates large volumes of water from its trunk to drown or push back enemies, or crushes them with its massive weight. It consumes a lot of cursed energy, limiting prolonged use.

Rabbit Escape:
Rabbit Escape summons a swarm of rabbits to distract, confuse, or allow the user to quickly escape. Ideal for group evasion tactics.

Circular Rena:
The Circular Rena heals wounds via a reverse cursed technique and neutralizes cursed objects with positive energy. Focused on medical support and purification.

Piercing Bull:
The Piercing Bull executes straight charges that gain power with distance traveled, piercing through robust defenses. Resistant against high-level sorcerers.

Morbid Tiger:
(I'll have to make this up here) The Morbid Tiger is a white humanoid tiger with black markings all over its body, capable of delivering high-powered physical blows.

Mahoraga:
Mahoraga, the Divine Immortal General of the Eight-Handed Sword, continuously adapts to any attack or phenomenon using his wheel, wielding a divine sword of extermination. Uncontrollable by ordinary users.

The Ten Shadows Technique is a technique inherited from the Zenin clan in Jujutsu Kaisen, primarily used by Megumi Fushiguro, which allows the user to summon up to ten distinct shikigami through shadows as intermediaries. The shikigami are subdued via an exorcism ritual, where the user must defeat them to control them, and shadows are manipulated for summoning via hand gestures that form shadowy puppets. Destroyed shikigami transfer power to the remaining ones, and the technique allows the user to store items or their own body within the shadows, which can support their weight.

Advanced functions that require training:

Shadow manipulation allows for concealment, surprise ejection, weapon storage, and the creation of false shadows for distraction or evasion. Advanced users summon without stable forms, carry adaptations of Mahoraga, or use abilities without full manifestation.