Raising a Bat
One of if not the most enthralling yaoi of all time!!!!! I love how instead of using smut to string the reader on from chapter to chapter, this manhwa has an iron clad plot that plucks your heart-strings and keeps you wanting more. Also, the vampire component is there, but used tastefully. Instead of your stereotypical Twilight adaptation, the author uses the vampire attribute of Sam to underscore the different struggles the main characters go through. The plot doesn't even use the vampire attribute to be the main fixation of the manhwa (although it is a paramount component of the plot), it instead focusses more on the daily struggles of Gyeom and how they all feed into the more vampiric struggles of Sam. If you are tired of the run of the mill "Boy meets boy, boy fucks boy, boy and boy may get a second chapter composed of 20 pgs of more boy fucks boy, but there's a cliche problem" then this is the read for you ;3
Blue Lust