Mizugi ga Zurete... Haitteru!
Konna Yoru ni Akuma wa Kuru
Soutaisei Virgin Theory
[Kemoyuru (Akahito)] Kaeru-shiki Yokkyuu Seikatsu [Digital]
[cloudair (Katsuto)] Layla-san ga Yattemita! (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
Hontou ni Suki desu ka?
Happy theory
Dr.BUG Containment Failure
Kuroneko to Shoujo
COSMO Milky
[Kuroiwa Menou] Haha wa Konya mo Nemurenai | Mother can't sleep tonight either. (COMIC 0EX Vol. 14 2009-02) [English] [shinkage] [Decensored]
Risky Play#1
[Crow_Theory of Heaven] Gurren Lagann Shimo-kyun Haa Haa Hon Hadaka Negai (Gurren Lagann) [Raw]
(C64) [Kokushi Tenshi (Various)] SPACE STRING THEORY (Uchuu no Stellvia)
[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}
[Anthology] BOY MEETS BOY
(C75) [SHi's Laboratory (SHINGO)] Majideka! COLORFUL (Quiz Magic Academy)
Mother's Needs [English] [Rewrite] [EZ Rewriter]
(C95) [Lv.X+ (Yuzuki N Dash)] Futago Ane + Omake no Hon
A-G Super Erotic 6 [English]
Uchi de wa Kazoku Sex wa Joushiki Rashii | In My House, Family Sex Is the Norm
Kimi to no Shukumeiron - The theory of fate with you. | 與妳的宿命論
Fes Kaisai!
Futaba841 (Mitsuya Yoguru) - The Love and Pleasure Theory for Boys [ENG]
[Takotsubo Club] Danger Zone EX 5 (El Hazard)
[Yui Toshiki] Hna ...
(C92) [Jagabata (Kukuri Oimo)] Secret KISS (THE IDOLM@STER CINDERELLA GIRLS)
Hajimete no tai ken | First Time
A Kid’s Theory
Hataraku Sugimoto-san
Chiyukan
(C46) [Black Dog (Kuroinu Juu)] Submission Mercury Plus (Bishoujo Senshi Sailor Moon) [English]
オンリーラブズユードル - ]Only Loves you Doll
(COMIC1☆6) [Crazy9 (Ichitaka)] Zessica no Koufukuron | Zessica's Theory of Happiness (Aquarion Evol) [English] [biribiri + Doujin-Moe.us]
[GABUGABU] 息子の朝勃ちにドキドキしちゃうお母さん
(C95) [OrangeMaru (nodoco)] Christmas no Seishouseki (Fate/Grand Order) [English] {The Ancient Hentai Theory}
[Dr.P] Prepaid Honey (COMIC HOTMILK 2016-03) [Chinese]
Smashing!
(C92) [Yuasa Rengou (Jean Louis)] Suiren Mama ni Omakase! (Pokémon Sun and Moon)
[Erect Sawaru] Raikou Shinki Igis Magia -PANDRA saga 3rd ignition-
WASANBON vol.7
[Anthology] China Shirudrome
[Igedoaha] Maiden ~Shoufu ga Moto Kishi no Karyuudo ni Hirowareru Hanashi~ | Maiden ~the tale of a prostitute taken in by a former knight~ [English]
[Ootani Mikoto] Seishun Kanjouron - youth emotion theory [R18 Ban] 1
Dosukebe Kyonyuu JC ga Kounai Onanie Suru Hanashi
Succubus Koumakan
Elements1 - Theory
Mahoroba Danchi 05
Ilsa Kyoukan no Kojin Shidou
(C58) [Okosama Pancake (Alroune)] Austin Reika DX*DX (Ojamajo Doremi)
スレイブボール洗脳 セレナ&ニンフィア
Thunderbolt Boys Excite – Taffy
Locus of Slave ZERO
COMIC Unreal 2015-12 Vol. 58
Rem no Koufuku H Ron | Rem's Happiness H Theory
Rinjin no Bitch Hitozuma o Tsugou Yoku Buookasu! | 隔壁婊子人妻任采撷
[Yadokugaeru (Locon)] Kaname 09 [Chinese] [刷牙子漢化] [Digital]
(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}
Shinzui Vol.6 Ch. 9
[mdo-h] DEVIL'S BORN (Soutaisei Virgin Theory) [Chinese]
[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]
[Akifuji Satoshi] Boshi Kantsuu
(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]
[RHF=Migite No Tomo Sha (Enoma Shinji)] RHF Vol.20 Ten ni Mashimasu Warera ga Chichi yo 3 (Various)
Scapegoat Koufukuron | Scapegoat Theory of Happiness
[SHINSHIN] Shinshin Nijigenron | Mind and Body Two Dimension Theory
Innocence1 - Theory
Pakurareta Osananajimi wa Pakorareta Kanojo
Sex Camp
(Gunreibu Shuho & Houraigekisen! Yo-i! Goudou Enshuu 4Senme) [Nyamo Nyamo (Chief)] Dokidoki Yuugumo-san (Kantai Collection -KanColle-)
[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]
[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]
Nukegara
Erina-sama no Renai Kenkyuukai. 2 | Erina-sama's Love Laboratory. 2
源頼光
[Manbun no Ichi (Parmiria)] Futanari Udon no Tabehoudai ~Saiminfuu~ (Touhou Project) [Chinese] [拉玛哥诚不我欺也汉化] [Digital]
Empty Theory 8 - Apparent Flash
Inuyama Aoi-chan to Osake de Icha Camp
[Katou Jun] Avatar Trans 02 [English] [Decensored]
[Kiai Neko] Best of Kiai Neko; Scatology Selection
[Dokumushi Shokeitai (Kaneda Asao)] Mob-kao Bakunyuu no Dokyuusei o Ore no Iinari no Sefri ni Shiteyatta... 4 | I Made My Big Breasted Classmate With The Plain-Looking Face Into My Fuckbuddy... 4 [English] {Doujins.com} [Digital]