Finally Someone Pointed It Out!! - Tumblr Posts

Several times in the games and drama cds it has been made clear that the Diaboys are violent and sadistic because they are demons/vampires and sadism is pretty much tied to their nature. They are predators and humans are their prey, so in my opinion, the way they behave makes sense, as they are fucking monsters. If people are bothered by this, maybe they shouldn't have gotten involved with Diabolik Lovers which is listed as a DARK romance. And yes, all the Diaboys were jerks to Yui, but throughout the games and drama cds they've all done a lot of things to redeem themselves with Yui and love her like she deserves.

If people want to hate the Diaboys that's fine, what's not fine is trying to force others to think like you.

//EXACTLY!!!!!

The franchise is literally called DIABOLIK Lovers,the title already spoils what is it about.As you said,if that person is bothered by the sadistic nature of the Diaboys ,they shouldn’t even get involved in it.