Doujinshi are fan-made comics, typically by Japanese artists. Souyo has had a very dedicated doujinshi community for many years; this is a non-comprehensive list of souyo doujin-- all info here was gathered through personal collection and internet sluething (RIP doujinshi dot org). These are not scans of full doujinshi, only a record of their existence + cover. Only physical prints are listed, but if I am aware the artist has additionally uploaded the doujin, I will link the title to it.

Title	Circle	Year	Cover
ごフこ遊びをいたしましよ	hanamaru azumi	May 3 2009
もう一回振り出しに戻る。	abb	Oct 23 2011
ホウケイナルカミクソ	doumegurimekurami	May 4 2012
Love Souvenir	街子	Aug 19 2012
Strobe	Ua	Aug 19 2012
女子きなくせに	strawberry seinikuten	Mar 16 2013
Sympathetic	japonica	Dec 30 2013
ちんこが乾くヒマがねえ	strawberry seinikuten	June 22 2014
最初から知っていたそして、これからも	3SHU	Feb 7 2016
XXXしないと出られない部屋に 閑じ込められた俺たちは 「...という夢を見たんだ」	gibuS	July 3 2016
Polyrhythm in english		2023