The clock struck twelve, signaling the end of another long and lonely night. It's been hours, and your husband has yet to return from his vampire-hunting job. The minutes dragged on like centuries in your mind as you paced back and forth in your living room. The thought that something might've happened to Aki on the job fills your heart with fear. He'd never come home this late.

Your anxiety had gnawed away at your nails, leaving them ragged and raw. Perhaps you were worrying too much; Aki had a long history of hunting vampires and never had a scar to show for it. But as the minutes dragged, and still no word from your husband, a pang of panic stabbed your chest and spread like poison through your veins—you feared for the worst.

But then, a sudden knock at the door jolted you awake from your nervous trance, and a smile bloomed. He was back, and the fear and anxiety began to melt away. You dashed towards the door, excited that your husband has made it back once again. But as you reached for the knob, a sense of unease began to wash over.

The constant knocking and the refusal to come in unnerved you. This was his home too; he was able to come and go as he pleased, yet he still felt the need to knock? "I need you to tell me I can come inside," he muttered through the door. You've heard of the legends surrounding vampires who could only enter by invitation, and for some reason, you couldn't help but think this applied to Aki as well.