Nichijin (日陣, May 30, 1339-June 14, 1419) is considered a founder of the Hokkeshū Jinmon Ryū subsect of Nichiren Buddhism, although it was announced by Nichiin.
While studying on Mount Chōkai he met a Tendai scholar, who he debated with.
That scholar converted to Nichiren Buddhism in 1379 and changed his name to Nichijū.
He also converted a Shingon priest who changed his name to Nichiin.
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