Jujutsu Kaisen Doujinshi and Comics
In Jujutsu Kaisen, all living beings emanate energy called Cursed Energy (呪力, Juryoku), which arises from negative emotions that naturally flow throughout the body. Ordinary people cannot control this flow in their bodies. As a result, they continually lose Cursed Energy, resulting in the birth of Curses (呪い, Noroi), a race of spiritual beings whose primary desire is to bring harm to humanity. These curses are shown as gruesome monsters, ghosts, and yōkais.
Jujutsu Sorcerers (呪術師, Jujutsushi, lit. "Cursed Technique Masters" or "Shamans") are people who control the flow of Cursed Energy in their bodies, allowing them to use it as they please and also to reduce its release. High-ranking Sorcerers and Curses can refine this energy and use it to perform Cursed Techniques (呪術式, Jujutsushiki), which tend to be unique to the user or their family. An advanced form of Cursed Technique is Domain Expansion (領域展開, Ryōiki Tenkai), which the users build a pocket dimension of variable size. Inside the domain, all of their attacks will always connect and grow in strength.
Yuji Itadori is an unnaturally fit high school student living in Sendai. On his deathbed, his grandfather instils two powerful messages within Itadori: "always help others" and "die surrounded by people." Itadori's friends at the Occult Club attracted Curses to their school when they unsealed a rotten finger talisman which Itadori swallowed to protect Megumi Fushiguro and his friends, becoming host to a powerful Curse named Ryomen Sukuna. Due to Sukuna's evil nature, all sorcerers are required to exorcise him (and, by extension, Itadori) immediately. But upon seeing Itadori retaining control over his body, Fushiguro's teacher Satoru Gojo brings him to the Tokyo Prefectural Jujutsu High School with a proposal to his superiors: postpone Itadori's death sentence and train under Gojo until he consumes all of Sukuna's fingers so the Curse can be eliminated. At the same time, a group of cursed spirits plot a multi-layered attack on the world of jujutsu sorcery, including the Cursed spirit Mahito and a corrupted sorcerer named Suguru Geto, who was executed by Gojo a year prior. The Kyoto school's principal wants Itadori dead immediately at the exchange event between the Tokyo and Kyoto jujutsu schools. In contrast, others, including fellow student Nobara Kugisaki, side with Gojo to keep Itadori alive.
The disfigured Kyoto Jujutsu Tech second-year student Kokichi Muta, who pilots Mechamaru, is revealed to be a mole. Geto and the cursed spirits lay a screen over Shibuya. Various sorcerers arrive at the scene to fight them. Gojo fights off cursed spirits and exorcises Hanami, a high-ranking cursed spirit, but is sealed away by Geto in a certain artifact. The events also reveal that the current Geto is not the original but rather Geto's corpse possessed by an ancient sorcerer named Kenjaku. Itadori and his allies face Kenjaku's forces, with Gojo still trapped inside the artifact. As the incident ends, Kenjaku reveals that he has been jumping from body to body for thousands of years and implanting Binding Vows, which in turn awakens thousands of new sorcerers throughout Japan, including Tsumiki Fushiguro, Megumi's step-sister. He then unleashes a slew of curses on Japan, ushering in chaos and a world of cursed spirits reminiscent of the Heian period.
In the aftermath, Itadori and Fushiguro team up with second-year student Yuta Okkotsu and Yuki Tsukumo, a special grade jujutsu sorcerer and one of the most powerful sorcerers of all time, along with half-human, half-Curse Choso and second-year student Maki Zen'in to meet with Tengen. Tengen, an immortal, part-Curse part-human jujutsu sorcerer, reveals Kenjaku's plan to merge Tengen's consciousness with Japan's human population. The Culling Game, Kenjaku's all-out war between the sorcerers and Curse users of Japan, then begins.
