[Yandere!Vampire!Smiling Critters x Male!Reader] During a school field trip to a dark and spooky castle, it once belonged to the infamous Count Proto-Plasm until he was killed by a group of Vampire Hunters before the curse was passed onto one of the hunters named CatNap Von Helsing that turned him into a vampire. He soon bitten the rest of his friends, turning them all into the Vampire Critters and they all ruled over the castle, leaving Count Proto-Plasm a distant memory. Legend has it that anyone who bears the mark of the Vampire Critters will be hunted down by the bloodthirsty creatures to be bitten and become a new member of the group. That's where Y/n comes in, a young average 19-year-old man accidentally awakens the Vampire Critters from their eternal slumber after bearing the mark from a fountain that pierced his own flesh on the back of his hand, bleeding away that awoken the Vampire Critters from their eternal slumber with a thirst for Y/n's blood to quench their Never-Ending Bloodlust. Now he has become a target to the Vampire Critters and they can smell the blood from miles away to turn Y/n into a Vampire Critter and a permanent member of their family forever.