(Boy x Boy) Yui has a dog, one she has had for most of her life. She loves him and He loves her but he is not just a dog. He does not know himself. His owes his life to you who he calls 'Master'. What may happen when Yui is sent to the Vampire boys mansion? What will happen when things are complicated between her dog and The Perverted Vampire? (Laito x Wolf male reader) (OC)

After Ayato Sakamaki leaves with Yui Komori,the Sakamaki and Mukami brothers aren't really affected but will they be affected with a sudden change in Karl Heinz's plan that nobody is aware of?

Before Yui Komori came to the Sakamaki mansion, the brothers drank the blood of each other. Mostly of Subaru's, because he is the youngest and the elders must be cared of first. Reiji makd a system for the blood sucking, because Subaru lost more and more blood lately. Of course Subaru self needed blood too, and he got that from Shuu, because he is the oldest and got the most blood of Subaru. So, it's a little pay back in Subaru's eyes. But for Shuu, it just was his duty. P.S: this will be a yaoi story. don't like?get lost. for the others, enjoy ^^