Jūō- Japanese GroupCollective"The Ten Kings"

The Courts of the Dead

The Jūō are the ten judges who preside over the underworld courts through which every soul must pass after death. The system entered Japan through Chinese Buddhist scripture, particularly the Shiwang jing (Scripture of the Ten Kings), and became deeply embedded in Japanese funerary practice by the Heian period. Each king presides at a fixed interval after death, beginning with Shinko-Ō at the seventh day and continuing through set periods until the final judgment at the thirty-third year.

The most feared of the ten is Emma-Ō, the fifth king, who holds court on the thirty-fifth day after death. He is the Japanese form of the Indian Yama and presides over the central tribunal where the deceased's sins and merits are weighed. Before Emma-Ō stands the Johari no Kagami, the Mirror of Karma, which reflects the true nature of every deed the soul committed in life. No deception is possible before this mirror. Those found guilty of unrepented transgressions are assigned to one of the hells, while those with accumulated merit proceed toward better rebirths.

Funerary Practice and Devotion

The ten-court system shaped Japanese memorial customs profoundly. Families hold memorial services (tsuizen kuyō) at intervals corresponding to each king's court: the seventh day, fourteenth day, twenty-first day, and so on through the first anniversary, third anniversary, seventh anniversary, thirteenth, and thirty-third. Each service is understood as an appeal on behalf of the deceased before the presiding king. The bodhisattva Jizō is especially invoked as an intercessor who can rescue souls from harsh judgments, and paintings depicting the ten kings alongside Jizō were common in medieval Japanese temples.

The Bussetsu Jūō Kyō and the Jizō Bosatsu Hosshin Innen Jūō Kyō provide the scriptural foundation for these practices. Medieval illustrated scrolls depicting the courts show each king seated in formal robes, attended by demonic scribes who read from the registers of the dead. These visual traditions reinforced popular understanding of the afterlife and kept the ten-court system at the center of Japanese Buddhist eschatology for centuries.