Character from [i][[Super Heroine Boy]][/i]. 

An insecure, mousy otaku who has a crush on Yukari. Was bullied in the past and is distrustful of [[Ooiwa Wataru]] because of his delinquent background.

Originally in posts such as post #2794427 his name was given as [i]Konishi Shunpei[/i], but later pages (such as post #3297586) gave his surname's pronunciation as [i]Kosaka[/i].