Board Thread:Questions and Answers/@comment-32058248-20170520142053/@comment-32199573-20170604135026

In my opinion they like Yui only because of her blood.

Let's find the logic here:

The boys have had a horrible childhood and from medical eye, it is very rare for a child to act normal if they had a horrible life. So let us take Reiji for an example. Because his mother had almost no time for him, he can't feel closeness to anyone, that type of emotion blocks him to feel love.

The second thing it what Yui actually said in the first episode. They don't have hearts.So how can they fall for someone?

Then we have Yui Komori herself. The girl is forced to live with 6 sadistic vampires who are either teasing or sucking her blood. I don't know for you but i wouldn't be in love with someone who does that to me. Well at least if I am not a masochist or i don't have Stockholm Syndrome.

But yeah i hope this explanation was helpful!