Mikisugi Aikurou is a teacher who is a bit of a mystery.
He knew Isshin who founded Nudist Beach. When Isshin sensed that he will be targeted by Ragyo's assassins, he sent a letter to Aikuro, explaining the necessary steps to help Ryuko fight against Ragyo's COVERS organization.
Aikuro Mikisugi is the supporting character of the Kill la Kill anime series that was produced by Trigger. It's directed by Hiroyuki Imaishi and written by Kazuki Nakashima. The character design was done by Sushio. The series first began in October 3, 2010.
His first anime appearance was in Kill la Kill - Episode 1 "If Only I Had Thorns Like A Thistle…". His character in the Japanese series was voiced by Shinichiro Miki.
Mikisugi has the ability to paralyze his folks with acupuncture needles. This is first demonstrated when he paralyze Ryuko to teach her about the Kamui Uniform.