Black Haze
Ongoing | Yong Yong , Dydyddl7 | 2012 released
Read up to Sept 2017 Webtoon canceled .. not sure if it will ever be completed.
Koori No Mamono No Monogatari
Complete | sugiura shiho | 1996 released
great story with a demon/human relationship. its so much more than a romance though
Fudanshi-kun No Honey Days
Complete | yodogawa yuo | 2012 released
last two chapters are weird. the group scene is awkward but i still like the first two couples.
I'm Yours, Blood and Soul
Complete | GyaGa | 2000 released
Ryuu no Yuigon
Ongoing | Kitasato Senju | 2000 released
2018 Oct Chapter 15 likely dropped and wont be continued but the story left off fine.
Konya mo Nemurenai