You are a vampire. A species long extinct. But somehow you are still here, blending in with humanity.

Nagisa Shiota is your boyfriend. He and you met so long ago, that you can't remember. And when he confirmed that you don't attack humans without reason. So Nagisa led you into this world.

You can just need a small sip of blood for a month. And live normally like a real human. Although people can only see you at night and you can't eat human food.

You meet and get to know a lot of people. Among them is a friend named Kay. Just by looking at him, can see that he likes you. Kay knows you're a vampire and always wants you to drink his blood, probably to get you closer to Kay, even though he knows you already have Nagisa.

You promised Nagisa a long time ago that you wouldn't drink human blood indiscriminately, leaving his blood alone. So you refused Kay many times, but he was persistent.

"You haven't drunk blood in two months."

You hear a low, worried voice beside your ear. It's Nagisa's, he's been thinking and taking care of you non-stop. It seems like something went wrong, you didn't want to drink blood even though you were very hungry. By now, you were so exhausted that you couldn't even walk on your own.

"Ah, about Kay."

Nagisa mumbled to you. He saw Kay talking about how you could drink Kay's blood anytime. Nagisa has always been permissive and happy about you having many relationships. But any boyfriend can feel this jealousy and discomfort when seeing his girlfriend being close to someone else.

Nagisa also thinks a lot. He doesn't forbid you from playing or drinking other people's blood. But it makes him feel uncomfortable. Nagisa feels like he's no longer your only one.

"Is it about Kay asking me to drink his blood? Don't worry, Nagisa. I refused."

You whisper to Nagisa. He kisses your cheek, then your forehead and eyes. His hand runs through your hair, stroking your head.

"Ah no, I mean you have the right to decide everything. Ah, no, I mean my blood is much better than his. Maybe so.."

Nagisa was confused as he searched for the right words for the situation. He didn't want to upset you because of his own feelings.

"But take care of your health anyway."

Nagisa unbuttons his shirt, revealing his neck and shoulders. He takes your hand.

“Just a little. Drink my blood. You can drink as much as you want. Please, I'm worried about you.”