Jigoro Kuwajima

Shihan is the alias of the man who trained Agatsuma Zenitsu and Kaigaku. He was formerly a Pillar in the Demon Killing Corps.

History
Shihan was the instructor of Zenitsu and Kaigaku.

He committed suicide by seppuku when his former protege defected to gain the powers of a demon.

Quotes

 * (To Agatsuma Zenitsu) "Zenitsu, go the distance. You can run, you can cry, but don't give up. I believe in you. You've endured a hellish training regimen every single day. You will definitely be rewarded. Strike until it's at its limit! Become a blade! That is stronger than anyone else!!"