(C93) [Hardcore Zayaku Souten (Hirayan)] Aru Hi, Chaldea Rouka nite (Fate/Grand Order)
[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]
(C91) [Noritama-gozen (Noritama)] Anata to Watashi no Monogatari (THE IDOLM@STER CINDERELLA GIRLS)
[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]
Soutaisei Virgin Theory
(COMIC1☆6) [enuma elish (Yukimi)] Chie-chan to. (Persona 4)
bothasurato
(C83) [RADICAL DASH (Miyane Aki)] Zetsubou Yuugi (Chousoku Henkei Gyrozetter)
Z46-chan wa Yome ni Tsuki
Empty Theory 7 - Destroyed Family
(COMIC1☆3) [Milk Gohan (Aita Nikov)] ChiQB!! (Queen's Blade)
[SHINSHIN] Shinshin Nijigenron | Mind and Body Two Dimension Theory
Juseigaku Ryokou
Mamono nante Taberu kara... Ochinchin ga Haechau no yo!!
(ナナナナ)
Fuzzy Theory
なまシエル
(C94) [Tatakai no Kiseki (Senyuu)] "...Shiyo?" "Dame desu" (BanG Dream!)
(C88) [JACK-POT (Jyura)] Cosplayer no Hon (Kantai Collection -KanColle-)
[mdo-h] Soutaisei Virgin Theory [Digital]
(C81) [Aigan Shounen (Hanamura Shikika)] Rental! Nyannyan (VOCALOID)
[kaisendoh] Aida ni Ooya-san to Kizukanu Uchi ni H Shiteta Hanashi
Hentai Seiheki Muchi Musume!
[Purin House (Nakai Naka)] HYHH! Season 3
[Blman] Kore ga Watashi no Tsuma desu. Zenpen (COMIC Tenma 2015-11) [Chinese] [黑条汉化]
Shisai Elf-san no Fellatio
[NaruEver] The BFF 2 [English]
Majimadou ] PINKY WHORE SHOW!!
[Katakana de, velokisss] Tonari no Hitozuma-san! ~Maniac~
[Aigamodou (Ayakawa Riku)] Mahou Tsukai no Yotogi -Yuuwaku- | -Temptation- (Mahou Tsukai no Yoru) [English] [Life4Kaoru] [Digital]
妖々縛錮
(C70) [Houkaiseki] Hopping Shower (The Melancholy of Haruhi Suzumiya)
Lovely Fighter
[Miumi] Otousan to Issho! Azusa to Nana no Hachinenkan [Digital]
(C91) [Ganbari Machine (Shino)] P-san, Kyou mo Ganbatte Kuremasen ka? (THE IDOLM@STER CINDERELLA GIRLS) [English]
A Kid’s Theory
love is a curse
(Knights Theory) [Snow Peach (Mipoko)] Naru no Anal kara Inspiration ga Waite Kuru zo (Ensemble Stars!)
Kodomo no Riron | A Kid’s Theory
Imouto Tomomi-chan no Feti Choukyou Ch. 5 | Younger Sister, Tomomi-Chan's Fetish Training Part 5
Benkei Ketsuron
静かな森の夜 (冴えない彼女の育てかた)
SUN-RISE
[Ozaki Akira] Hitozuma Inran Sousenkyo
Empty Theory 2 - Sky High
(C70) [Youkai Tamanokoshi (CHIRO)] SILENT SEA Revenge!! (One Piece) [English] [Erotic Rapture]
Kimi to no Shukumeiron - The theory of fate with you. | 與妳的宿命論
BLADE SET 2
[Shimimaru] Odoriba no Hime | Princess At The Top of The Stairs (COMIC HOTMILK 2021-10) [English] [AnotsuSagami] [Digital]
Koi Suru Taiyou no Hana
COMIC Anthurium 2021-1
Rem no Koufuku H Ron | Rem's Happiness H Theory
A Professors Theory on Love and Sex Reassignment Surgery
[Monorino] Mahoroba wa Shikakui Mado ni (COMIC Megastore Alpha 2014-12) [Chinese]
(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]
(C90) [JULIA (Matsuyoshi Ako)] Kimi to Asa Kara (Daiya no Ace)
Mama ga Idol!?
Aru Boukensha-tachi no Ketsumatsu route:β
(C64) [Kokushi Tenshi (Various)] SPACE STRING THEORY (Uchuu no Stellvia)
(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)
GGG
le cirque be chichikuri (Karakuri Circus)
Tensai Pet no Shiiku Nikki
[Hobb's End] Rakugaki Suumai
(COMIC1☆3) [Honey Bump (Nakatsugawa Minoru)] Hamaguri Hime wa Ore no Yome. (Tengai Makyou II: Manjimaru)
Heavy Syrup Dellinger
[MILF Shobou] Hahaoya no Mukashi no Mizugi Sugata no Shashin ga Do-Strike Datta [English] [Amoskandy] [Digital]
(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)
[Shimoboard (Shimosan)] Apple Seed (Otogi-Jushi Akazukin)
Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]
[Akashitei (Tokoyo Akashi)] Koume Akechaimashita (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
(C62) [Chuuni + Out Of Sight, Nihon Waru Waru Doumei (Kim Chii, Arima Keitarou)] Gakuen No Idol Hotaru-chan (Bishoujo Senshi Sailor Moon)
好きな人なら怖くない
K's Theory
Elements1 - Theory
(Dai 11-ji ROOT 4 to 5) [sima (enaga)] Kono atari, ijitta kata ga yoin janai ka? (Fate/Grand Order)
Ane wa Ore no Hcos Dorei er
Oshioki Oujo
Empty Theory 6 - Hearts Scheme
-Milkyway -裸足のシンデレラ
[DISTANCE] Michael Keikaku ~Kyou kara Boku wa Onnanoko~ 3 [English] [Tadanohito]
(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}
(C95) [OrangeMaru (nodoco)] Christmas no Seishouseki (Fate/Grand Order) [English] {The Ancient Hentai Theory}
(C89) [Butagoya (Kemigawa)] Immoral (Maken-ki!) [Chinese] [黑条汉化]
COMIC Magnum Vol. 90
Empty Theory 8 - Apparent Flash
Houkago no Hokenshitsu
[Senbon Torii] FallenXXangeL18 Inferno Ingoku no Maki Full Color (Injuu Seisen Twin Angels)
RHYTHMIC SPORTS GYMNASTICS
(C77) [... Mou Ii Desu. (Jinmu Hirohito)] Pink wa In (ry | Pink Is Obscene (Ranma 1/2) [English] [SaHa]
Hayaten ~Butaichou ga suki~
Breasted Masturbation Maid - Himeno Reika Arc-
(SC35) [Youkai Tamanokoshi (CHIRO)] Serial cyce.2 (Dragon Quest V) [English] [Chocolate]
[Watanabe Wataru] Anoko to Tokkun
Netoraserare 3
Ano Toki Anata to | With You Back Then
(C78) [Kinokonomi (kino, konomi)] Kinokothical Theory (Various)
Empty Theory 1 - After Pleasure
Kyonyuu Idol Tomoe Mami KyouIku-teki Shidou
[Persona] Reijou Gangu (Slave Doll)
[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}
(C66) [SUBSONIC FACTOR (Ria Tajima)] The steady-state theory (Fullmetal Alchemist)
[Ichikawa Gekibansha (Ichikawa Kazuhide)] しょーもないおっちゃん・岩田浩二郎の場合
(C76) [Namiroji (Shiina Nami)] Chanto Toilet de Shimashou [Chinese] [魔劍个人汉化]
(Dai 8-ji ROOT4to5) [Yukemuri Inferno (Opon)] Raikou-san no Iru Seikatsu (Fate/Grand Order)
Akogare no Tsunade-sama o Zettai Haramasetai! | ¡Quiero embarazar a Tsunade-sama!
(C74) [Metabocafe Offensive Smell Uproar (Itadaki Choujo)] Hige Danshaku de Renaissance (Code Geass: Lelouch of the Rebellion)
[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]
Empty Theory 4 - Well Definitely Meet Again
Inazumicro
FUTANARIX REMIX {doujins.com}
[TYPE-57 (Frunbell)] TYPE-43 (Tanaka-kun wa Itsumo Kedaruge) [English] [Nenio] [Digital]
Orcs and juvenile ω love evolution theory
[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]
Crow (Theory of Heaven) - Honey Kami the 2nd vol.0.7
(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon) [Chinese] [沒有漢化]
[Jyoka] Hachishaku Hachiwa Keraku Meguri - Igyou Kaikitan