(C77) [Ringo Gakuen (Mayonnaise.)] Joseiki-nai no Piston Undou ni Yoru Masatsu Taiden wo Riyou shita Hatsuden System no Rekishi | History of Piston Friction-Powered Electricity Generation System Via the Female Reproductive Organ [English] [DesuDesu]
[Pirontan] Otona no Douwa ~Shirayuki Hime
[REDLIGHT] Otona no Ehon Akazukin-chan
Otonano Omochiya Volume 3
(COMIC1☆10) [Kirintei (Kirin Kakeru, Kouri)] Otona NO Time [English] {doujins.com}
あまえんぼHoney
(C94) [Tousen Soudou (Tousen)] Otona no Nazarick (Overlord)
[Umino Luka] Erosugiru Tokoya no Obasan ~Otona no Option wa Ikaga? 1-3,5-9 [cqxl自己汉化] [Digital]
[Otonano Gu-wa (Yamada Tarou (Kamei))] TABOO Hitomi Zenpen [Chinese] [柚月佳叶个人汉化]
Motto Otona o Dame ni Suru Kangoshi Kitano-san | Making Nurse Kitano-san Into An Even Badder Girl
(C95) [Shichiten Battou (Miyasaka Takaji)] Otona nante Baka bakka
Hitozuma Niku Piston
[Drill Murata] Ikumade... Piston! - Do the piston until breaking Ch. 1-7 [English] [Zen]
(C69) [Mahirutei (Izumi Mahiru)] Kotona na Kanzi (Zoids: Genesis) [English]
(C70) [Otona Star (Hiuma)] Otona OS Nettouhen (OS-tan)
Otona no Dagashi Soushuuhen
[Pirontan] Otona no Douwa ~Match Uri no Shoujo
(C80) [Super Flat Lolinitron (Focke Wolf)] Otona no Shouko. (Asatte no Houkou.)
Momoiro Play
[Pirontan] Otona no Douwa ~Sanbiki no Kobuta