Vampire Knight ...?
Ouran High School Host ClubFruits BasketPeach GirlKarin (AKA Chibi Vampire)
I would suggest Ouron High School Host Club or OHSHC. It may seem weird and gay at first, but it is incredibly funny atop romance.
Prince of Tennis!
some good ecchi mangas are: velvet kiss nozoki ana love junkies hetakoi and more.....
try mangadaddy and mangareader
Try Kaichou WA maid sama! its really funny n romantic n has a demon! :)
Special a or sa and maid-sama
manga fox.com is a good place
Where and when it is personally: 1: Romantic 2: Without people around (private)
wait and watch.................... well don't worry he won't die
One is Karin, which is also known as, Chibi Vampire.
Only good one that comes to mind is, Monster.