Guy under me is on some pussy shit. I thought this manga was pretty good. Started off strong, ended well.
Recommended? Sure. It's a quick read, took me like 10 minutes.
@Suck-a-duck, interesting take.. but I'll have to disagree. The mark on the neck is most likely a hickey. I feel that sexual abuse you mentioned doesn't not exist due to the lines "yes, my onee-san who I was so proud of, until one week ago" this implies that they got along well before the blood...
For the ending, there are 2 outcomes. one is more likely than the other. and the second but I might be totally wrong... Who knows? Cliffhangers really do suck... >:(