Kensei (Japanese: 剣聖, sometimes rendered in English as Kensai, Ken Sai, Kensei, or Kenshei) is a Japanese honorary title given to a warrior of legendary skill in swordsmanship.
[1] This suggests a higher degree of perfection (possibly also encompassing a moral dimension) than the more commonly used kengo (剣豪) or "sword master".
Other historical kensei are often the founders of popular schools of swordsmanship.
Although there is no such written rule, the title carries such prestige that it is commonly understood that there should be no more than one kensei at any given time.
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