same age

Metal Monkey (57th term of the sexagenary cycle, e.g. 1920, 1980, 2040)

Shōmen Kongō (deity)

こうしん only; Abbreviation; Historical term

kōshin-machi (religious wake)

7th in rank; seventh sign of the Chinese calendar

Metal Dog (47th term of the sexagenary cycle, e.g. 1910, 1970, 2030)

Metal Horse (7th term of the sexagenary cycle, e.g. 1930, 1990, 2050)

Metal Rat (37th term of the sexagenary cycle, e.g. 1960, 2020, 2080)

Metal Tiger (27th term of the sexagenary cycle, e.g. 1950, 2010, 2070)

Metal Dragon (17th term of the sexagenary cycle, e.g. 1940, 2000, 2060)

Historical term; Buddhism

kōshin-machi; staying awake on the eve of the 57th day of the sexagenary cycle to prevent the three worms that were said to inhabit the human gut from reporting one's wrongdoings to the gods; a tradition that began among nobility in the Heian period and became widespread during the Edo period

Historical term

Kōgo register; Japan's first census register (670)