Here are some cool ones with nice stories as well.
Nana tu Kaoru
Need a girl < funniest shit ever. by the way its a Manhwa
Puppy lovers (this is some real hot shit)
KOI WA MISOJI WO SUGITE KARA
NOZOMI TO KIMIO
Cage of Eden.
Kangoku Gakuen, Need a girl zippy ziggy and nana tu kauro are a must. you wont be disappointed.