Vampire's Portrait Volume 1 (Yaoi)

A starving artist, Ru sits on a street corner and draws everyday. In an age
of patrons and artists, he longs for the day a noble will acknowledge his
ability and support him. When a man called Zain commissions him to draw his
portrait, Ru soon discovers that his patron is not only incredibly wealthy and
generous - he's also dead! Instead of being fearful of the blood-thirsty
vampire, Ru realizes that he longs for the pull of Zain's lips on his neck
and doesn't want Zain to drink anyone's blood but his own!