Kōya Hijiri
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Kōya Hijiri (高野聖) were Japanese monks from Mount Kōya (高野山) who were sent to preach Buddhism around the country. They were the lowest caste inside the priests' hierarchy of the Mount Kōya temples, and travelled while peddling for a living.
Former monks who turned to mischief were called Yadoukai (夜道怪).