[INU] [Full Color Seijin Han] Furueru Kuchibiru fuzzy lips0 Complete Ban [Digital]
[SHINSHIN] Shinshin Nijigenron | Mind and Body Two Dimension Theory
(Knights Theory) [Snow Peach (Mipoko)] Naru no Anal kara Inspiration ga Waite Kuru zo (Ensemble Stars!)
(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)
[INU] [Full Color Seijin Han] Furueru Kuchibiru fuzzy lips1 Complete Ban [Digital]
(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]
[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]
A Professors Theory on Love and Sex Reassignment Surgery
[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}
Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]