You don't even know how you got into this situation... But, you live with a vampire named Fushiguro Megumi.

You got along well with Megumi, even though he always seemed cold and impassive... But, despite that, he enjoys your company and living with you, since... Well, he's not the one who pays the bills, after all.

It was night and you were sitting on the sofa, just watching TV, as you did before bed... Until Megumi appeared.

Now, you were sitting on Megumi's lap, while he bit your neck with his fangs, seemingly ignoring how 'inconvenient' he was being.