Scapegoat Koufukuron | Scapegoat Theory of Happiness
Soutaisei Virgin Theory
(C66) [SUBSONIC FACTOR (Ria Tajima)] The steady-state theory (Fullmetal Alchemist)
FATE/GENTLE ORDER
Shokushu no Koibito, Ai Aru Seikatsu.
Empty Theory 5 - Advantage
(CT22) [ABLISS (Mei)] crush on you! (Kyoukai Senjou no Horizon) [English]
(C82) [PHANTOMCROSS (Miyagi Yasutomo)] Nao chan to Tada Ichaicha sugosu dake no Hon (Dream C Club)
Gushonure
Empty Theory 8 - Apparent Flash
Rem no Koufuku H Ron | Rem's Happiness H Theory
A Professors Theory on Love and Sex Reassignment Surgery
(C86) [NOSEBLEED (Miyamoto Issa)] SoniCom 2 (Super Sonico)
Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]
Sharon the Shiela: A Bogan Tale [English] [Rewrite] [EighthNipple]
Empty Theory 1 - After Pleasure
[Ootani Mikoto] Seishun Kanjouron - youth emotion theory [R18 Ban] 1
Empty Theory 2 - Sky High
[Nekonokone (Takeyuu)] Suzuya Level Kai Ni (Kantai Collection -KanColle-) [2017-09]
(COMIC1☆6) [Katamimi Buta (Kan Koromoya)] Ranma Da Ranma - Rankou ~Ranma no Baai~ (Ranma 1/2)
[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]
(COMITIA118) [Nekonote Shobou (Nekonta)] Kurake Nina-san to Boku no Are
Monthly Vitaman 2014-04
K's Theory
Empty Theory 7 - Destroyed Family
[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]
[Coffee Kizoku] Marble Bloomer [English][Simhauu]
(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)
[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]
DEEP NIGHT HERO
[Osamuya (Mura Osamu)] Asoko ga Ookikute Nayandeiru Shota to Itoko no Onee-san [Chinese]
KINOKOPOWER 12
Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery
(C95) [OrangeMaru (nodoco)] Christmas no Seishouseki (Fate/Grand Order) [English] {The Ancient Hentai Theory}
Fuzzy Theory
(C89) [Hibi Rakuraku (Aoki Kanji)] Ouhi-sama Hacchake asobasu (To LOVE-Ru) [Chinese] [無毒漢化組]
(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}
[Ningen Modoki (Random)] Bukki ga Chikan ni Osowareta (Fresh Precure!)
(C89) [Papapapapaon!! (Pao)] Ano Ko no Sex
PowerfulCup Rakugaki Hon
[NT00] 2B 9S (Nier:Automata) [English] [Sair]
Comic Hime Dorobou 2004-07
[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]
(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]
Kodomo no Riron | A Kid’s Theory
(SC19) [Hellabunna (Iruma Kamiri)] Tekitou Copy Bon. (Various)
(C85) [SOTIKOTI (soramoti)] Kankore Girls (Kantai Collection -KanColle-) [English] {doujin-moe.us}
(Knights Theory) [Snow Peach (Mipoko)] Naru no Anal kara Inspiration ga Waite Kuru zo (Ensemble Stars!)
Empty Theory 6 - Hearts Scheme
[InuCream (InuCreamice)] Dosukebe Seal ~Shikura-kun no Baai~ [English] [ChoriScans]
Oretoku Shuugakuryokou ~Otoko wa Jyosou shita Ore dake!! Ch. 1-24
[Sugar Overload] My Little God [Complete]
(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)
[Utata Hakuto] Houkago Virginity - Virginity afterschool 1-2 [Chinese] [拾荒者汉化组] [Digital]
Elements1 - Theory
[SunSun LAB (Ogakuzu)] Spy Sange -Ingoku ni Torawareta Hana-
[mdo-h] Soutaisei Virgin Theory [Digital]
(C88) [Dai 6 Kichi (Kichirock, Ootori Mahiro, Tachibana Omina)] Namadashi Nozoerix (Love Live!)
(C59) [Omiotsuke (Soumi Rei, Sanari)] Dame Dame! Hatsune! (Kizuato)
(C88) [40010 1-GO (40010Prototype)] Closest Sister (To LOVE-Ru) [Chinese] [脸肿汉化组]
Empty Theory 3 - Cousin
ごっこ遊び