You're Not Allowed!

~!WARNING NOTE!~
I want to try writting a story in English, so please don't mind my mistakes if I make any. It's my first time writting a story in this language. I hope it will be understandable :3

You all know the six vampires from Diabolic Lovers, right? Yeah, so this is mainly about two of them. The oldest brother and the youngest brother. But don't worry, the rest of them will appear in here too, together with the annoying Yui, who is, as all of you know, their food. But maybe not this time? What will change in the long and lonely life of the two vampires?