Gege Akutami is the pen name of a Japanese manga artist, born on February 26, 1992, in Iwate Prefecture. The creator's real name, gender, and other personal details are not publicly known, and Akutami deliberately maintains this anonymity, often using the avatar of a one-eyed cat or appearing in character cosplay for public appearances. During childhood, Akutami moved to Sendai in Miyagi Prefecture and began drawing manga by mimicking a friend, which sparked the ambition to become a professional artist.

Akutami first encountered manga seriously by secretly reading an issue of Weekly Shōnen Jump belonging to an older brother, which contained the debut chapter of Tite Kubo's Bleach. This experience proved formative, and Akutami has cited Bleach, along with Yoshihiro Togashi's Hunter x Hunter and the anime Neon Genesis Evangelion, as significant influences. After high school, Akutami attended an art college and began pursuing a professional career. In 2014, Akutami started working as an assistant to manga artist Yasuhiro Kano on the series Kiss x Death while simultaneously publishing original one-shot stories.

Akutami's early publications include several one-shot chapters in Shueisha magazines. Kamishiro Sōsa appeared in Jump NEXT! vol. 2 in May 2014, followed by two separate one-shot versions of No.9 in 2015, and Nikai Bongai Barabarujura in Weekly Shōnen Jump in October 2016, the latter of which was nominated for the magazine's 11th Gold Future Cup contest. In 2017, Akutami serialized Tokyo Metropolitan Curse Technical School, a four-chapter series in Jump GIGA that introduced the concepts of cursed energy and jujutsu sorcerers. This work later became the prequel to Akutami's major series and was retroactively titled Jujutsu Kaisen 0.

Akutami began serializing Jujutsu Kaisen in Weekly Shōnen Jump on March 5, 2018. The series ran until September 30, 2024, spanning 271 chapters compiled into 30 tankōbon volumes. The story follows Yuji Itadori, a high school student who becomes the host of the powerful curse Ryomen Sukuna and joins a secret organization of jujutsu sorcerers to combat supernatural curses. The series is noted for its dark fantasy elements, complex power system involving cursed energy and Domain Expansions, and morally ambiguous characters. Akutami has explained that no character holds absolute truth, with each being guided by their own ethics.

The Jujutsu Kaisen franchise has expanded into multiple media adaptations. An anime television series produced by MAPPA premiered in October 2020, with its first season adapting the early story arcs. A feature film, Jujutsu Kaisen 0, adapting the prequel manga, was released in 2021 and became a major box office success. The second anime season aired in 2023, covering the Gojo's Past arc and the extensive Shibuya Incident arc. A third season began airing in 2026, continuing the story with the Itadori's Extermination, Perfect Preparation, and Culling Game arcs.

Akutami's work has received significant industry recognition. Jujutsu Kaisen was nominated for the 65th Shogakukan Manga Award in the shōnen category and for the 25th Osamu Tezawa Cultural Prize. In 2020, Akutami won the grand prize for Jujutsu Kaisen on the Mando Kobayashi manga variety show. The manga has achieved immense commercial success, with over 100 million copies in circulation by 2024, making it one of the best-selling manga series of the 2020s. Akutami's artistic identity is characterized by dynamic, quick pencil work, a sensibility for grotesque creature design, and narrative techniques that draw thematic parallels between characters and story events. Following the conclusion of Jujutsu Kaisen, Akutami collaborated on a short-term manga series, Jujutsu Kaisen Modulo, illustrated by Yuji Iwasaki, which ran in Weekly Shōnen Jump from September 2025 to March 2026.