Brain Training by Professor Grace
Professor of the Cow God 1 (English)
Rain
[Haguruman (Koutarosu)] Araragi Hakase no Hon 2 | Dr. Araragi's Book 2 (Pokémon) [English]
Shota Kyuuketsuki to Ikenie no Futanari Ookamihime
[Ootori Ryuuji] Hakase to Musume to Joshu to Inazuma | Professor and Daughter and Assistant and Lightning (Increment RO) [English] [desudesu]
White Chuuihou
Kodomo no Riron | A Kid’s Theory
Mazjojo 1607 July 2017
(C95) [Hizatora (Kageshio)] ACTING LIKE (Fate/Grand Order) [English] {The Ancient Hentai Theory}
[Piyotto March (Doku)] Sensei Anone - English
[Fujiya] Hakase ga Ijoude Yokujou | The Professor Has An Unusual Fetish (COMIC Megastore 2012-04) [English] [desudesu]
Kakubetsu na Majiwari
Kingyobachi
Zundoko Sennou - Isshu Hen | 즌도코 세뇌 - 잇슈 편
[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]
Yuutousei Minami
Switch
Genius Professor and her Assistant
[Asagi Ryu] Sense, ne? | Professor (Girls Girls) [English] [Yuri-ism] [Digital]
Shuumatsu wa Ojama Shitemasu | Staying Over On Weekends
A Professors Theory on Love and Sex Reassignment Surgery
[Theory of HEAVEN (CROW)] Ikuiku! Ikuma-kun! (Black Jack) [2017-08-20]
Time
Innocence1 - Theory
ボクと先生のとくべつな紅茶
Sex-Stories Kapitel 2: Floras Geheimnis (Finale Edition)
[Theory of HEAVEN (CROW)] Onikuya Ken-chan (Anyamaru Tantei Kiruminzoo) [Digital]
May 2019 Rewards
Kaya-nee, Shasou demo... | 香耶姐、就算在车窗边也...
[Kuroiwa Menou] Hitozuma Club Bijo to Yajuu-tachi (COMIC HOTMILK 2020-05) [English] {The Ancient Hentai Theory} [Digital]
(C92) [Koniro Drops (Morishima Kon)] Rironjou 3-patsu made nara Taeraremasu. - In Theory You Can Tolerate up to Three Shots (Splatoon)
[StrangeSagittarius (Kisaki)] Sonia-hakase wa Tamatteiru | Professor Sonia is Pent-Up (Pokémon Sword and Shield) [English] [Coffedrug]
Ippai Taberu Kimi ga Suki!
[Crow_Theory of Heaven] Gurren Lagann Shimo-kyun Haa Haa Hon Hadaka Negai (Gurren Lagann) [Raw]
[Ooba Nii] Milch server servant (Kasshoku Heroine Vol. 2) [English] [Chocolate]
(SC2015 Autumn) [CHRONOLOG, D.N.A.Lab. (Sakurazawa Izumi, Miyasu Risa)] Super String Theory (Kantai Collection -KanColle-)
クリームヒルト、復讐の為に頑張る
Masjojo July 2017
Empty Theory 6 - Hearts Scheme
Hakase no Yoru no Joshu. Soushuuhen
Anemitsu 2
(Challe! 14) [YMC (Chihi)] Nayameru-kun ni Knockout (Pokémon Sun and Moon)
(SUPER19) [e++ (Monin)] DAYDREAM (Professor Layton)
[Tori] Hiyoko Smile 7
Layton x Everyone
(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]
Tsumareta Ikoku no Hana
Asakura Hakase no Bibouroku | Professor Asakura's Memorandum
Salvia no Koibito