Shoujo Sect Vol. 1 by Ken Kurogane A pure yuri series that contains
Shoujo Sect Vol. 2 by Ken Kurogane The second volume and it contains
Blue Eyes Vol. 3 Chapter 13 by Tohru Nishimaki Series is mainly
Blue Days Chapter 4 by Yuuki Tomoka Doujin is mainly hetersexual.
Deep Blue by Gurumepeppo Aria doujinshi. First half is yuri,
Alignment You! You! (Prologue) by Matusmoto Drill Kenkyuujo Mainly