Recognition Component Theory

Fuzzy Theory

(C71) [Chinpudo (Marui)] Itadaki! Flame Hazes (Shakugan no Shana)

[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]

Otonari-san wa Koi Wazurai

Empty Theory 6 - Hearts Scheme

GAME/DEATH

Hoshi Asobi 2

(CR32) [Momo no Tsubomi (Various)] Puchieru Eru (Various)

(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]

Admiral Office

(CR36) [Yabougumi (Kawamoto Hiroshi)] Yabou Kanketu (2x2 Shinobuden)

[mdo-h] DEVIL'S BORN (Soutaisei Virgin Theory) [Chinese]

[Kisaragi Gunma] Step Up (Giri Giri Sisters) [Chinese] [Decensored] [Colorized]

(C80) [CHAGASHI SAIBAN (Yamabuki Mook)] Chagashi Saiban Event-Only Book (IS <Infinite Stratos>) [English] [Life4Kaoru, Rapidswitch] [Decensored]

Misshitsu Kankin Goukan

Tawawa na Kouhai-chan 2

[DISTANCE] Joshi Luck! ~2 Years Later~ 4 | 女子棍球社! ～2 Years Later～4 [Chinese] [Digital]

Monthly Vitaman 2018-01 [Digital]

Mamazuri Ep5

(C92) [Mousou Deguchi (Unou)] Mousou dake nara Ichininmae (Kono Subarashii Sekai ni Syukufuku o!) [English] [Doujins.com]

(C73) [FANGS (Higashimidou Hisagi)] Futanari Euphemia x Kyonyuu Cornelia (Code Geass: Lelouch of the Rebellion)

(Chou Ore no Turn 2022) [As. (HTM)] Tsumi to Batsu Jou (Yu-Gi-Oh! 5D's)

Orcs and juvenile ω love evolution theory

(SUPER13) [Myuripyu (Shidako)] Makai Ouji (Eyeshield 21)

[Sumomo Dou (Sumomo EX)] Chitsu o Hiraku Mono | Her Open Vagina (Queen's Blade) [English] [J99814] [Digital]

[Magoroku] Ane Kaoru (Midara na Kaori, Chouhatsu Suru Ashi) [Chinese] [黑条汉化]

Chuunen Doutei Jishou Masuta to Jutsu Aniki no Supplementary Lesson

(Shuuki Reitaisai 3) [Konnyaku Nabe (magifuro Konnyaku)] Yanagi no Shita no Futanari Onanie Show (Touhou Project)

[Darabuchi] Zettai Kyosha Ch.1-3

Big Breasts Flat Theory

Derenashi

[2nd color (Typehatena)] Kawaisugiru Chino-chan to Icha Love Shitai node Chotto Bakashi Kyouseiteki ni? Shinaido 120% ni Natte Moraimashita | I Wanted to Be Lovey-Dovey with Chino-chan so Much I Overdid it My Affection Return (Gochuumon wa Usagi desu ka?)

Soutaisei Virgin Theory

[Crow_Theory of Heaven] Gurren Lagann Shimo-kyun Haa Haa Hon Hadaka Negai (Gurren Lagann) [Raw]

SweetEdda vol.09 Aku no Soushiki Hen

Empty Theory 2 - Sky High

[Shoryutei Enraku] Seishin Kaihouron | The theory of releasing your real self (Nozoite wa Ikenai 7 - Do Not Peep! 7) [English] [Quick and easy translations]

10-nenkan no Netorare Zenkiroku -Yome to Gifu to no Midara na Nichijou-

The S&M Siblings Across From Me

Shikikan wa Cleveland no Koto ga Motto Shiritai!

Totsuzen Gishi to Gimai ga Dekite Shimatta Ken EX | 突然有了義姐與義妹的那件事EX 自慰被義妹發現後的日常

Inumimimusume Choukyou Monogatari

A Professors Theory on Love and Sex Reassignment Surgery

Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery

Planet Brobdingnag Ch. 1-8

[RE:LAY (Kuroiwa Madoka)] PL/RAY USA (Nisekoi) [Chinese] [通渠汉化]

[Arimura Daikon] Hontou wa Ecchi Daisuki na Fuuki Iinchou-chan BSS

Warau Kado ni wa Fukukitaru

[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]

Friends Mae Shippo Goudoushi

Rem no Koufuku H Ron | Rem's Happiness H Theory

Rifure Yattete Nani ga Warui!? {Hennojin}

[Ryo] Ato no Matsuri (COMIC ExE 13) [Digital]

Empty Theory 3 - Cousin

(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]

[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]

Empty Theory 4 - Well Definitely Meet Again

(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)

Velvet Kiss Ch5

(SC2016 Winter) [Tetravortex (Hasuno)] GudaGuda My Room (Fate/Grand Order)

(C92) [ジョーんご亭(シコジョー)] 性魂奉納の儀 (千年戦争アイギス)

(C95) [OrangeMaru (nodoco)] Christmas no Seishouseki (Fate/Grand Order) [English] {The Ancient Hentai Theory}

Kyonyuu Ane no Yuuwaku - The busty sister's temptation | Temptation of Big Tits Elder Sister

Ore Mama 10

Mujikaku na Osananajimi to Kyoumi Honi de Yatte Mitara

Seigai no Uta

Nitori-san nara Dogeza Sureba Donna H na Onegai demo Kiite Kureru

[Ryo] How To Eat Delicious Meat - Chapters 1 - 6 [English] =Anonymous + maipantsu + EroMangaGirls=

(C73) [Denji Yuudou (Murata Denji)] Konoko ga Inakya Hajimaranai! (Samurai Spirits)

Happy theory

[Sasamori Tomoe] Houkago no Yuutousei Ch. 4, 6-8 [English] [NecroManCr, Facedesk]

Tousakuteki Carthasis

Motenai Jimi na Elf o Kanojo ni Shita Hanashi 2 | I'm Dating A Plain-Looking, Unpopular Elf 2

Maid Minami no Gohoushi Full Course {Hennojin}

Omakasekudasai Ojousama

Anarchy Girl!!!

Kimi to no Shukumeiron - The theory of fate with you. | 與妳的宿命論

Tsukaima to Goshujin-sama no XXX

(C86) [Sunset Beach (Hammer)] Hitori Asobi Gensou 2-nenme (Touhou Project)

(C64) [Studio Koron (Kouzaka Kohei)] GENESIC SAGA-another story.04- (The King of Braves GaoGaiGar)

(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}

[Takayaki] Seiya No Caribou♀Fallin' Love | Caribou Fall in Love at X'mas (COMIC Megastore 2012-02) [English] [TIE]

(C87) [Musashi-dou (Musashino Sekai)] Gyanko to Sekai no GunPla Battle Daitokkun (Gundam Build Fighters Try)

(C64) [Kokushi Tenshi (Various)] SPACE STRING THEORY (Uchuu no Stellvia)

[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]

C97おまけ本

Takao Sensei to Nayameru Seito Shidou

Kimi ni Suki da to Itta kara

Misuse

Empty Theory 5 - Advantage

Scapegoat Koufukuron | Scapegoat Theory of Happiness

Kanojo wa hi dōtei

(MyBestFriends6) [Hatogoya (Suruga Rinu)] To To Dolce (THE IDOLM@STER CINDERELLA GIRLS)

[Suzuki Kimuchi] Sei Kangofu Anna - Kangofu Rock 3

E de Miru nh

Kodomo no Riron | A Kid’s Theory

[Sanbun Kyoden] Sayuki no Sato [English] [Decensored]

Sousei Mahou Futanarilink IV

(C78) [Kinokonomi (kino, konomi)] Kinokothical Theory (Various)

Tokimeki Metareal

My Wife is an iDOL -Haruka Baby-Making Edition-

(C77) [Buruman (Tajima Yuki)] S&M Revenge + omake hon (Touhou Project)

A Kid’s Theory

(C87) [liz project (Miyamoto Liz)] μ's to Icha Love H Nico Route ・ Nozomi Route (Love Live!)

Innocence1 - Theory

Claim Seishori Joshi Shain 2

Futanari ni Natte Shimatta Tajimusho Manager no Watashi ga Eroero Beast de Wadai no Idol Tsunashi Ryunosuke-san o Osou nante...!? | 身为经纪人的我变成扶她后竟然化身性感野兽 把对方事务所的人气偶像 十龙○介先生 扑倒了...!?

Slave Secretary

[SHINSHIN] Shinshin Nijigenron | Mind and Body Two Dimension Theory

Kikan Hitozuma Vol. 1-4

よっぱら愛宕さん

[Nibiiro no Sora (Mukaunosato Isuke)] Konoha Chanpuruu (Naruto) [Digital]

Empty Theory 1 - After Pleasure