Board Thread:Questions and Answers/@comment-29810559-20171029223024/@comment-26537436-20171030005735

The vampires of Diabolik Lovers are in no way the same as the original vampire lore where those have weakness over garlic, daylight and rosaries. They don't come out of sunlight because they don't want to be seen. They eat human food as a normal human would - because they needed to blend in with the human society. And I've also never seen that their vision diminishes in sunlight.

They aren't affected by liquid poisons (especially the ones Reiji makes) though it makes their skin burn for a bit, only thing that can potentially hurt them is by killing them (stab through the heart, taken their heart out), anything that can serve as a mortal wound would make them dead. Silver weapons is an added bonus.