I called him "Ko-chan."
He was just next to me in alphabetical order (Matsumoto - Mishima) when we were in the 8th grade.
I haven't seen him since we graduated from junior high school.
I wonder if he doesn't still remember me, but I'm so happy to hear his wonderful performance. ＼(^o^)／
*Kohei Mishima → http://www.mito-hollyhock.net/www/topteam/member/member11.html