Vygotsky Sociocultural Theory

Fuzzy Theory

[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]

(SPARK10) [AQUARIUM (Moriko)] Mayonaka Hitori (Yowamushi Pedal)

Maji de Watashi ni Koi Shinasai Visual Fan Book

Empty Theory 6 - Hearts Scheme

Dungeon Travelers - Sasara Himegoto 3

(SUPER24) [Saltblow (Hashira Sio)] milk of spirit (Yowamushi Pedal)

(C82) [MuraMura Pocky (Kasumi)] MIDSUMMER (Puella Magi Madoka Magica) [English] [Yuri-ism]

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

Harameite Kirakira Hoshi

(C87) [BRIO (YO)] Omoi ga Kasanaru Made (Love Live!) [Chinese] [无毒汉化组]

Mayonaka no Gohoushi | 深夜中的侍奉

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

[Spiritus Tarou] Shimekiri-Giri-Giri Threesome (COMIC Anthurium 2019-12) [Chinese] [Digital]

Benmusu Omnibus Vol. 1

(C92) [Beberoncino Sei (Betty)] Mitsumeru Sono Saki ni Kimi no Sugata (Kantai Collection -KanColle-) [Chinese] [胸垫汉化组]

[Gururi] [Takukamu] Anya no Yume (Fire Emblem Fates)

[Tuna Empire] OMA-JYU [Chinese]

[Herohero Hospital (Herohero Tom)] Hotondo Hanashita koto nai Baito-saki no Senpai ni GyakuRe sareru Hanashi [Digital]

(C91) [Camrism (Kito Sakeru)] Orange Wristband II (THE IDOLM@STER CINDERELLA GIRLS)

マコト=ナナヤちゃんは発情期

FORTUNE ARTERIAL 完結編

Yoidore Share Kaifuku

(Bokura no Love Live! 25) [Kitaku Jikan (Kitaku)] Yakimochi (A) Symmetry (Love Live! Sunshine!!) [Chinese] [ことほのうみ个人汉化]

Haramachi 22

Orcs and juvenile ω love evolution theory

Meimetsusuru Heya

(C95) [Fujiyuu Kenkyuu (Akai Kagerou)] Mifune-san to Shugaha to Sannin de Suru Hon (THE IDOLM@STER CINDERELLA GIRLS)

Dead Traveler Daily

[Koutarou] B☆B☆IDOL [English] [Fated Circle + Doujin-Moe.us]

Iinari Princess, Chapter 2

Abunai Koto Shite Mitai 2

Chuuka Shounen Biyaku Chuunyuu Itazura Kenbunroku

Mama to Ayumi-san ni Shibori Torareru Musuko no Hanashi |The Story About a Son Who is Exploited by His Mom and Ayumi

Big Breasts Flat Theory

[Hazuki Kaoru] Toudai Juken Senmon Ryou Aa Tsubame Sou

Yun Ying

Soutaisei Virgin Theory

Kenka Saikyou Kinniku JK ga Biyaku Nomasarete Bonyuu Fukidashite Haiboku

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

Maid Service Double Fox

Yatto Tsukiaeta Osananajimi no Kanojo o Senpai to Kyouyuu Shiteta Ken

COMIC Shitsurakuten 2013-11

[FANTASY WIND & CHIBIKKO KINGDOM] Arakawa Seiharu Hakusho (Arakawa Under the Bridge)[ENG]

Rinjin zetsurin oyaji no NTR saimin chōkyō ~ tsuma ga harama se rareta ohanashi

(C79) [Applesauce (Sada Ko-ji)] Seikan Plugsuit 2 Kaikan Jigoku Book (Rebuild of Evangelion)

Empty Theory 2 - Sky High

[Gambler Club (Kousaka Jun)] LET'S Ra MIX (Card Captor Sakura, Bakusou Kyoudai Lets & Go!!)

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

(Go! My Master ver.Girl) [Morohane. (Tatejima.)] Under Line (Fate/Grand Order) [English] [Squigglesjp]

(C89) [sin-maniax (Todoroki Shin)] utter darkness -GOLDEN HOLE2- (To LOVE-Ru) [English] {doujin-moe.us}

(C89) [NANACAN (Nanaka Mai)] Kega o Shita Gran-kun no Karada o Danua-chan to Narumea Onee-san ga Aratte Kureru Sou desu. (Granblue Fantasy)

(C94) [SeaFox (Kirisaki Byakko)] Anehime Hahahime Hebihime (Fate/Grand Order)

A Professors Theory on Love and Sex Reassignment Surgery

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

(C82) [Okadatei (Okada Kou)] Bukiyou na Hito

[Hadairozanmai (Mitei)] Imouto to Ofuro ni Haittara | When I Enter the Bathtub with my Little Sister [English] [Degenerate_X] [Digital]

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

[Fatalpulse (Asanagi)] VictimGirls 19 JEZEBEL AMAZONES (Dungeon ni Deai o Motomeru no wa Machigatteiru Darou ka) [English] [2d-market.com] [Decensored] [Digital]

Namaiki! 2017-07 [Digital]

(COMIC1☆6) [PX-Real (Kumoi Takashi)] SIG Siri (Mahou Shoujo Lyrical Nanoha) [English] [Tigoris Translates]

愛月撤灯

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

Empty Theory 3 - Cousin

FGO Ritsuka Fujimaru 03

(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]

(C86) [Urakata Honpo (SINK)] Urabambi Vol. 49 Kaa-san wa Boku ga Shiranai Uchi ni Omanko ni DoHamari shite mashita. (Gundam Build Fighters)

The Best Time for Sex is Now - Chapter 1 - Be Brave

(CT14) [Shochikubai (Otakehiko)] Oujo no Shiren (Yu-Gi-Oh! OCG)

[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-)

[Mimoneland (Mimonel)] Seito to Issen Koechau Hon -C&C Hen- | Crossing the Line with My Students -C&C Edition- (Blue Archive) [English] [Shiromaru] [Digital]

(COMIC1☆14) [Watsukiya (Watsuki Rumi, Yuuki Sei)] Achromatic Moon 02 (Ore ga Suki nano wa Imouto dakedo Imouto ja Nai) [Chinese] [oo君個人漢化]

(C93) [Usamimi Syndrome (Erutasuku)] Ore dake no kuso Aniki (Dragon Quest XI)

(C93) [PRETTY MAIDS (Itou Mine)] Himitsu no Yoshiko-chan (Love Live! Sunshine!!)

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

(Dai 10 Kai Hekigai Chousa Haku) [Kiseki (Kisaki Noah)] Usaginosippo ha onedarijyouzu | This rabbit is really good at using her tail to beg (Shingeki no Kyojin) [English] [EHCove]

Juukan Kyoushitsu -Shibayan-

Comic Masyo 2004-11

八極鋼管舞

夏娘 総集編

[Himuro Serika] Nyotaika Suieibu ~Ikutabi Onna ni Nacchau Ore no Karada~ 6 | Nyotaika Swim Club I Turn into a Girl When I Cum! 6 [English] [gender.tf]

Nagisa no Kasshoku Musume 3

(C91) [REI's ROOM (REI)] Fushigi no Kuni no Arisu (Girls und Panzer)

Youmu-chan ni Amaetai

Happy theory

Nishikino Maki Oppai Festival

Ore-tachi no Koto o Chinchin made Zenbu Homete Kureru Onnanoko no Ero Manga no Dounyuu to sono Ero Manga

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

Sexless Kaishouyaku

Shiru-Mamire Yagai-Koubi Nikusyoku-Duma | Juice Covered Outdoor Mating Carnivorous Wife

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

Naedoko Elf

(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]

(C88) [aka (Cevoy)] Warawa no Yome (Fire Emblem if) [English] [constantly]

Sensei to Joshu no Renai Do Sukutei! | 教授与助手的恋爱度测定！ 1-5

(CR31) [Majimadou (Matou)] Mei-Kai (One Piece)

(C80) [PURIMOMO (Goyac)] SHITUJI san tasukete Lucky sukebe! (Mayo Chiki!)

(C91) [Yakiniku Teishoku (Harami)] Hoshii Miki no Makura Eigyou!! (THE iDOLM@STER) [Chinese] [星井美希老公漢化]

Empty Theory 5 - Advantage

Scapegoat Koufukuron | Scapegoat Theory of Happiness

Kodomo no Riron | A Kid’s Theory

Mizugi Sukadi, Charao to Yaru.

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

[Mikami Cannon] Riko no Daibouken | Riko's Big Adventure (Icchau Karada) [English] {darknight} [Digital]

A Kid’s Theory

Innocence1 - Theory

(Gensoukyou Summit) [Binmalo (Beti)] Suku-Mizu DE Ecchi na Patchouli wa Suki desu ka...? - Do You Like Sexy Patchouli with Suku-Mizu? (Touhou Project)

[Ankoman] Astolfo Collection [English] [WataTL] [Digital]

Tomodachi no Onna

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