Polyvagal Theory

Kodomo no Riron | A Kid’s Theory

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

Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]

Empty Theory 7 - Destroyed Family

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

(Knights Theory) [Snow Peach (Mipoko)] Naru no Anal kara Inspiration ga Waite Kuru zo (Ensemble Stars!)

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

Elements1 - Theory

Empty Theory 3 - Cousin

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

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

Empty Theory 2 - Sky High

[Ootani Mikoto] Seishun Kanjouron - youth emotion theory [R18 Ban] 1

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

Empty Theory 6 - Hearts Scheme

Orcs and juvenile ω love evolution theory

A Kid’s Theory

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

Empty Theory 5 - Advantage

Big Breasts Flat Theory

Soutaisei Virgin Theory

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

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

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

[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 1 - After Pleasure

Empty Theory 4 - Well Definitely Meet Again

[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}

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

(C66) [SUBSONIC FACTOR (Ria Tajima)] The steady-state theory (Fullmetal Alchemist)

Crow (Theory of Heaven) - Honey Kami the 2nd vol.0.7

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

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

Innocence1 - Theory

[mdo-h] Soutaisei Virgin Theory [Digital]

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

(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]

Fuzzy Theory

K's Theory

A Professors Theory on Love and Sex Reassignment Surgery

[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]

Happy theory

Soutaisei Virgin Theory

Empty Theory 8 - Apparent Flash

Scapegoat Koufukuron | Scapegoat Theory of Happiness

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

(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)

NieR : 2BR18

[Hirohisa Onikubo] Onee-sama no Collection | A Collection of Young Ladies (COMIC Sigma 2008-12) [English] [Oronae]

Mochizuki-sensei's Field Trip

Suburban Mansion Looking For Tenants

[BENETTY] Bijo to Injuu Vol. 12 ~Ikai no Tegome Quest Shikiyoku Mamire no Shinshoku Kouhai ni Ochiru~ "FetiColle! Series"

[Hellabunna] Nennai ni Hatsubai Sareteru Kiga Shinee (DQ5 and others)

Nyotaika no Noroiwotoku Tame ni Senpai to H suru Koto ni Natta Bokunohanashi

(C76) [CLOVER (Kojima Saya, Kuro)] H Miku (VOCALOID)

Netorareta Hime Kihei

(C94) [FBC Yakei-dan (Cocq Taichou)] Chaldea Grand Summer Vacation!! [Incomplete]

[FESTA. (Yoshitani Motoka)] Jikan yo, Tomare 3D (Haiyore! Nyaruko-san)

[Ad-Hoc (Gonbuto)] Tobenai Tori ha tada no Chicken da (Battle Spirits Double Drive) [Digital]

Daikaijuu Monogatari

Tasukete Kudasai! Mitsuya-kun!

[OFF (OKINA)] Youmitsu Amedama - Sweet Sweet Candy

DANGAN ANGEL

[albaclow] Leopa-chan ga naedoko ni naru dake no hon (Ash Arms) [Chinese]

[Neko Daifuku (Nekono Shiro)] Hatsujou Infection (Sanoba Witch) [Digital]

Ame yo Muchi yo, Yumi to Gen | Carrots and Sticks, Bows and Arrows

[itsukamitaaoisora] Otoko no ko dakedo....4 zutto, ne?

[Studio N.BALL (Haritama Hiroki)] Seinaru, Kankei

Kosenjou no Eiyuu ni Natta kara Danin to VIP Room de Ketsuhame suru Hon

BOMGAKI GYARUS