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- He was born as Nakazato Yanosuke to a rice farmer family as second son (his older brother died early on). Childhood he spent in tough and poor environment due to his father losing their land and changing profession.
- After graduating from school, he took up telephone operator work and substitute teacher position in his alma mater to support his family.
- Around this time he became a fan of Matsumura Kaiseki, founder of Doukai (a religious movement or even "new religion" mixing up teachings of Christianity, Confucianism and Taoism), which inspired his pen-name "Kaizan".
- It is said that he brought Japan's popular literature to new age with his famous work "The Sword of Doom", which he however, never properly finished writing.
- Miyazawa Kenji made a song based on the work.
- Kaizan spent his whole life unmarried and alone, under rather simplistic and stoic circumstances. He stated that meanwhile he didn't think bad about women, love was no good and only damaged one's soul.
- For example during the writing of "The Sword of Doom", he lived in small room the size of six tatamis (roughly ten square meters) and ate simple food consisting of vegetables.
- He died of typhoid fever at age of 59.