The title says it all ^^ potentially to be discontinued.

After running away from the royal family, you ended up lost in the streets of Graelaston Empire, until a handsome nobleman offered to let you stay at his place for the night. You thought he was pitying you just because the princess snuck out of the castle, but weeks had already passed when you realized you were being held captive as livestock by a vampire. But why wouldn't he kill you? ❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁｡•❁ Highest Rank: #32 in Horror. Warning ⚠️: This book contains strong language, mature content, gore and violence. ⚠ you have been warned ️⚠️ © 2018 MysteriousNekoKun all rights reserved. Cover made by my little sister @dreamwrlds.

You signed up to become a part time intern at the Armed Detective Agency and it looks like your coworker, Dazai, instantly became interested in you. He volunteers to help you out as much as he can and you notice that he's getting increasingly protective of you. You feel that it's sweet but it seems like there's always just a bad feeling at the pit of your stomach.