Jutsu and Curses — Japanese Folk Religion and Jujutsu Kaisen

The Deep Roots of Jutsu

The concept of jutsu in Japanese culture spans thousands of years, from the shamanic practices of the Jomon period to the highly systematized onmyodo that structured court life during the Heian era. Jujutsu Kaisen draws on this layered history while adding a distinctively modern psychological framework that makes the supernatural legible to contemporary audiences.

The Heian Era: Onmyoji as Court Officials

The Heian period (794-1185 CE) represents the historical peak of institutionalized curse-work in Japan. The Imperial Court maintained onmyoji — specialists in divination, exorcism, and the manipulation of supernatural forces through rituals derived from Chinese cosmology. Abe no Seimei, the most famous of these figures, remains a cultural touchstone: his name appears in novels, films, and manga with the regularity that Merlin appears in Western popular culture.

Jujutsu Kaisen's Redefinition of "Curse"

Jujutsu Kaisen's most significant contribution to this tradition is its redefinition of "curse" (noroi). In traditional Japanese belief, curses required active intention. The manga inverts this: curses arise automatically from accumulated negative human emotion. Fear, regret, hatred — these generate tangible spiritual entities whether their originators intended harm or not. This is a distinctly modern anxiety made supernatural: the idea that our psychological states have consequences beyond our bodies.

Domain Expansion: Ancient Kekkai in Combat Form

The "Domain Expansion" ability represents Jujutsu Kaisen's most sophisticated fusion of traditional and contemporary concepts. The underlying idea — creating a bounded sacred space governed by specific rules — descends directly from the Japanese concept of kekkai (spiritual barrier). Shinto shrines mark their boundaries with torii gates and shimenawa (sacred rope); Domain Expansion is the combat application of this ancient spatial-spiritual logic.

The Curse System's Psychological Realism

By grounding the supernatural in recognizable human experience — the curses that haunt hospital corridors are made from decades of accumulated fear and grief; the curses in schools crystallize adolescent anxiety — the series argues that spiritual threats are not external invasions but projections of unprocessed human emotional life.

Related concepts 陰陽師 (onmyoji) / 呪い (noroi, curse) / 結界 (kekkai, spiritual barrier) / 式神 (shikigami, spirit familiar) / 祓い (harai, purification ritual)