Kinniku Tarou https://twitter.com/kinnikutarou

After Episode 6, Eila's side Strike Witches Doujin released Feb 18 '11
Hidamari Sketch Story Anthology Comic ch02: Chijinde Chijinda mono Hidamari Sketch Doujin released Aug 1 '13 Comedy
Present Strike Witches Doujin released Sep 19 '13 Birthday Comedy Eila x Sanya Yuri
K-ON! Anthology Comic ch05: Guitar With You released May 6 '15 4-koma Anime Comedy Music School life Spin-off Ui x Yui
The Distance Between Them Yuru Yuri Doujin released Dec 10 '18 Blushing Himawari x Sakurako No text Yuri
The Real Deal Yuru Yuri Doujin released Dec 10 '18 Himawari x Sakurako Reversal Yuri