J Romantica - Takahashi Misaki x Usami Akihiko
J Egoist - Kamijou Hiroki x Kusama Nowaki
J Terrorist - Miyagi Yoh x Takatsuki Shinobu
S1: ep1=vol1 ch1.1, ep2=vol1 ch1.2, ep3=vol1 ch2, ep4=vol2 ch1, ep5=vol2 ch2, ep6=vol2 ch2, ep7=vol3 ch1, ep8=vol3 ch1, [ep9=J. Minimum] ep10=vol5 ch2.1-2.2, ep11=vol5 ch3, ep12=vol4 ch2
S2: ep1=vol# ch#, ep2=vol# ch#, ep3=vol# ch#, ep4=vol# ch#, ep5=vol# ch#, ep6=vol# ch#, ep7=vol# ch#, ep8=vol# ch#, ep9=vol# ch#, ep10=vol# ch#, ep11=vol# ch#, ep12=vol# ch#
Junjou Minimum - Kamijou Hiroki & Usami Akihiko; Takhashi Misaki & Takahashi Takahiro
Junjou Romantica: Season 1: episode 9 = ch.1 - 3
Not gonna lie, this got uploaded oddly. Just read the chapter labeled "junjou minimum (complete)", then jump to chapters 6 - 7.
You can also read this in "Junjou Romantica", order: Ch 1 = Vol 4 ch 3; Ch. 2 - 4 = Vol 00 ch 8 - 10.1; Ch 5 = Vol 9 ch 3; Ch 6 = Vol 11 ch 3; Ch 7 = Vol 12 ch 3
Reading it here is a lot easier.
Junjou Mistake - Ryuichiro Isaka x Asahina Kaworu
Isaka and Kaworu are introduced in "Junjou Romantica": Vol 3 ch 1 and "Sekaiichi Hatsukoi": Vol # ch #
This is a PREQUEL to the Junjou Romantica universe - takes place 10 years prior
SH: TCo Onodera Ritsu / Takano Masamune - Ritsu x Takano
SH: TCo Kisa Shouta / Yukina Kou- Kisa x Yukina
SH: TCo Yoshino Chiaki / Hatori Yoshiyuki - Yoshino x Hatori
SH: TCo Yokozawa Takafumi - Yokozawa x Zen Kirishima
SH: TCo Animate - Keiki Tezuka x Kensuke Saigusa
Anime Available- THIS SITE CONTAINS PORN AND PORN ADS. YOU'VE BEEN WARNED.
https://myreadingmanga.info/anime-sekaiichi-hatsukoi-ova/
https://myreadingmanga.info/anime-sekaiichi-hatsukoi-propose-hen-ova/
Sekaiichi Hatsukoi: Yukina Kou no Baai - Yukina Kou x Kisa Shouta
Can also be read in "Seikaiichi Hatsukoi": Vol 7 ch 2
Anime Available for "SH - Yokozawa Takafumi no Baai", a storyline (and a light novel) from "Seikaiichi Hatsukoi".
THIS SITE CONTAINS PORN AND PORN ADS. YOU'VE BEEN WARNED.
https://myreadingmanga.info/anime-sekaiichi-hatsukoi-movie-yokozawa-takafumi-baai/
Anime available - THIS SITE CONTAINS PORN AND PORN ADS. YOU'VE BEEN WARNED.
https://myreadingmanga.info/anime-hybrid-child-ova/
Junjou Romantica