As far as I know, kenshi means "knight" in Japanese and the one you're looking for is most probably a character from the "Mortal Kombat" series. Check on Wikipedia: if you search "kenshi" you will be redirected to the Mortal Kombat Characters List page and you'll see who this Kenshi is. Good luck.
The blind Swordsman in Mortal Kombat.
Kenshi was created in 2002.
Shinano Kenshi was created in 1918.
Fujiwara no Kenshi was born in 994.
Fujiwara no Kenshi died in 1027.
Kenshi because he is skilled and blind
Onmitsu kenshi - 1962 is rated/received certificates of: Australia:M
Kenshi came out on the fifth, but they haven't anouced rain yet.
Tomei kenshi - 1970 was released on: USA: 30 September 1970
The cast of Tomei kenshi - 1970 includes: Kiyoshi Nishikawa Yasushi Yokoyama
Hissatsu onna kenshi - 1976 is rated/received certificates of: Australia:M USA:R
To unlock Kenshi in Mortal Kombat 9, you need to complete the Story Mode. Once you finish the story, Kenshi will become available as a playable character. Alternatively, you can also unlock him by completing 300 matches in the game.
剣士 Kenshi