Also known as: Koubou Daishi (弘法大師), or High Priest Koubou

A Japanese monk, scholar, poet, calligrapher, and artist who founded the Shingon school of Buddhism. He is credited with inventing kana (which includes hiragana and katakana) of the Japanese writing system as well as introducing homosexuality (or at least shudo) to Japan.

He studied in China from 804 to 806, where he was initiated into the Esoteric Buddhism tradition. He returned to Japan to establish the Shingon school, which would become the dominant Buddhism sect for the next 300 years. His teachings and his many writings, such as Attaining Enlightenment in This Very Existence, The Meaning of Sound, Word, Reality, The Ten Stages of the Development of Mind, and Ten Abiding Stages, synthesized Buddhism into a coherent whole, and displaced Confucianism with Buddhism as the official Japanese state ideology.

He was contemporaneous with Shaichou, the founder of the Tendai school.