(SC38) [Himitsu Doyoubi (Matsutaka Zon)] Eriko-san no Eikyuu Kikan (KiMiKiSS)
(C92) [A after school of silence (Tukise Mizuna)] Secret Garden (Love Live!)
(C62) [Himitsu Kessha M (Kitahara Aki)] Kyoushi no Koi Seito no Ai - SIDE:KEI (Onegai Teacher)
(C69) [Lover's (Inanaki Shiki)] Secret Sketch (School Rumble)
Osaka Shizuku no Houkago Secret Lesson | Osaka Shizuku's Secret After-School Lesson
(CSP6) [KINOKONOMI (konomi)] Nyancology 4 -Usami-san To Himitsu no Hokenshitsu- | Nyancology 4 -Usami-san And The Secret School Infirmary [English] {Doujins.com}
(CR35)[AKABEi SOFT (Alpha)] Karen no Himitsu (School Rumble)
(C79) [Tsurimura (Histamine C)] Hotaika no Megami (Hokenshitsu no Shinigami)
(SC38) [Himitsu Doyoubi (Matsutaka Zon)] Eriko-san no Eikyuu Kikan (KiMiKiSS) [English]
(C50) [Himitsu Kessha M (Kitahara Aki)] Tokimeki Guru Bii ~Densetsu no Ki no Shita de~ (Tokimeki Memorial)
