Suzumiya Haruhi no Yuuutsu - Nyoro-n Churuya-san (Doujinshi)

This is a 4koma series about Churuya, a creation by Utsura Uraraka. The character seems to have derived from Tsuruya from the series Suzumiya Haruhi no Yuutsu, as seen by the green hair and the usage of the word "megas."