(SC61) [SEM;COLON, moco chouchou (Mitsu King, Hisama Kumako)] idoLiVE -Fuzzy Navel-
[Mira] Kodomo no Riron | A Kid’s Theory (School Girls Love Selection) [English] {Hennojin}
K's Theory
Kimi to no Shukumeiron - The theory of fate with you. | 與妳的宿命論
Crow (Theory of Heaven) - Honey Kami the 2nd vol.0.7
[Kakashi Asahiro] Hakase no Renai Kaizouron | A Professors Theory on Love and Sex Reassignment Surgery (COMIC Situation Play Vol. 19) [English] [4dawgz + thetsuuyaku] [Digital]
[Shoryutei Enraku] Seishin Kaihouron | The theory of releasing your real self (Nozoite wa Ikenai 7 - Do Not Peep! 7) [English] [Quick and easy translations]
Kodomo no Riron | A Kid’s Theory
A Kid’s Theory
(C78) [Kinokonomi (kino, konomi)] Kinokothical Theory (Various)