Two mysterious men appear at the ruins of an ancient castle night after night. One of them is a beautiful girl, and the other one has unbelievable physical strength.
　They part every night when they return home after work, and never see each other in the daytime. I've only met her once in the city of Descend, once in a rare tavern where garlic is not served at night.

　It may sound strange for me to say this, but I think Razal and the others who are working with these two extremely suspicious people and don't distrust them at all are a bit out of their minds as mercenaries.
　At the very least, if I were in their shoes, I would have immediately cut ties with them or reported them to my employer.
　In the first place, they haven't backed down even though undead that they can't handle have attacked them many times, and I can't help but sigh in disgust at their stupidity.

　But I was rather fond of Razal and his mercenaries, who were neither poison nor medicine. I can sympathize with them, as long as there are benefits to themselves and no damage is done.
　Apparently, Mr. Razzal and his men can get bounties according to the number of undead that appear. I'll give you all those rights, but you have to keep us a secret. It's nice that our interests are aligned. A temporary partnership would be ideal.

　But we're going to need another move. There are too many things that I don't understand, so I'll try to break them down one by one. If it seems too dangerous, just get out of there.

　After finishing today's work, Senri and I were sharing information at the inn of [Descend].

I think [Descend] is hiding something.

"I agree with .............

　In the first place, it is a little strange that they have not contacted the Knights of the End, even though the case is related to the undead.
　I'm not sure what to make of that. It's not strange for them to contact the Knights of the Demise because the undead have started appearing again, and it's not a matter of money, since the Knights of the Demise don't ask for a price.

　I nodded my head, satisfied that we were on the same page, while I stared at Senri's bare, shoulder-length white skin.

　I put my arm around her slender back, and she turned her body around without defying my hand movements. The softness and warmth of her flesh, the occasional hardness of her bones, the lustrous hair, and not to mention the blood flowing through it, were all exquisite.

　In a single bed. There's no one nearby. It's been a long time since I've had a blood-sucking day, and I'm trying with all my might to figure out where I should bite today.

　Senri's voice is calm. But her heart was beating a little faster than usual, and the pauses in the conversation were long. And, although the darkness made it difficult to tell, his skin was also slightly tinged with vermilion. The five senses of a lower-ranking vampire do not miss even the smallest change.

　It was a little different from what I had expected, so I pushed Senri a little to turn her over on her side, and hooked my fingers in the collar of her thin nightgown and moved it down a little to inspect it. I don't know everything about Senri yet, but perhaps it's because of my extreme blessing that I can't find a blemish on her skin anywhere, and it's hard to decide where to bite.
　I lick my tongue to control my tingling fangs, and continue.


"There must be a reason for the increase in crystals at night. I want to see the moment they appear.

"......

　The night crystals give the undead a peculiar feeling of discomfort. At least, there was no sign of crystals appearing while I was hunting undead with Razal and the others. This meant that something had happened after we had left, in the morning or at night.
　That was the big problem. There is no sunlight in the tunnels, but regardless, the vampire's power is reduced during the day. Hiding in the tunnels is a bit risky. Sure, do it if you have to. But is it worth the risk?

　I put my nose to Senri's neck like a dog, but it wasn't quite right, so I grabbed her shoulders lightly and asked her to turn to the side. Senri's eyelids twitched as she was turned on her side. I can't help but notice the glimpse of her collarbone.

I'm not sure what to make of this.

　I've heard that powerful vampires have the power to control the minds of their targets, but I don't have that power.
　I've heard that powerful vampires can control the minds of their targets, but I don't have it. After all, the city is fully vampire-proofed.

　I'm not sure what to do, but I'm sure I'll be able to do it.

............ Certainly, we need to go carefully. But first, end ----.

　Senri said with a small sigh.




"If you're going to suck blood, suck it fast.




"...... I'm choosing where to bite. Senri said he'd allow it.

Yes, she did. But she's turned it over three times now. It's going to be a long night.

　That's true. But it's hard to decide.
　Senri gives blood once every 10 days. That means she only comes three times a month, and since she's given herself some leeway from the limits of her blood-sucking urges, she may leave it a little longer, depending on the situation.
　And Senri is stingy and only allows one bite at a time. He only allows minimal skin contact.

　Once she sinks her fangs in, all she does is suck blood. The pace at which she sucks the blood is up to me, but Senri is so slender that the amount of blood she can drain is small, and there is a limit to how long I can prolong the sucking.
　Touching her skin can be tolerated to a certain extent, since she'll give you a lot while she's sucking your blood, but what I enjoy the most is the timing of the fangs. And it is at those moments that Senri reacts well.
　The reaction varies depending on the position of the bite, so I naturally have to put a lot of effort into careful selection.

This is because Senri only allows one bite. It doesn't increase the amount of blood you can suck. ......

　Senri glared at me as I complained.

"At first, I allowed it, to a certain extent. I'm sure you'll be happy to hear that.

"...... I don't remember. I don't remember. But there's not a single mark on me.



He chewed all night long, even when I told him not to.

　It's okay, there's no blood loss. It was just a sweet bite, a sign of trust!　It was awesome, to say the least.
　I protested, staring at Senri's neck.

"That's a lie. No one told me to stop.

That's because ...... you were covering my mouth with your hand.

　I don't know if that's true,......, but I'm sure it is, because Senri would never lie to me.
　But I've made some compromises too.

　When I experimented with Monica, I bit her a lot more than I did with Senri, but the biggest reaction I got was at the base of her legs. But I never asked Senri to bite my leg.
　I've never asked Senri to bite my legs, but I've always resisted the urge to suck her blood and strip her clothes off while we shower together.
　I don't know if I can say this myself, but I'm sure there are no vampires as gentle as I am. If I could be forgiven for cutting off my intestines, I would do it all the time.


　Besides, I knew it would take some time to select the right one, so we were discussing the future of the selection. Am I at fault for my actions?　No, not at all.
　Senri narrowed his eyes, turned over and asked me in a stern voice from below.


Can you swear to me that you're not enjoying this, that you're doing this for nourishment?

"...... I've decided, I'll start from the front. Thank you.

　It's best to smoke while watching your face.
　I'm not sure if you've seen this before, but I'm sure you've.


I'm sure you'll be happy to hear that.



§"What?



"What's wrong?　What's the matter, did you get into a fight?

It's a sensitive issue, so I'd appreciate it if you didn't ask.

...... You're very clear.

　Mr. Razzal rolls his eyes. Senri glares at me.
　The old castle was deserted. I had come here in the evening with a carry-on case, but there was no unusual atmosphere.
　There were only a few people who seemed to be tourists. It seems that [Descend] is promoting this castle as a tourist attraction, and there are no strong demons around, so it could be that.

　And it looks like today is an "outlier".

　As usual, we go to the underground passage and wait for the undead to attack.

"The guy who gives us the job is acting suspicious. He didn't think we were that good, man.

Well, actually, Razzal, they're not that strong.

Well, they're not very strong. ...... Well, they're nothing compared to hunting vampires.

　Unlike the undead, humans can't kill creatures or demons to collect their deadly energy.
　But in my experience, the strong have an aura of their own. All the people I've dealt with in my life have been one-hit wonders.
　The only pure human among them who hadn't been augmented with blessings or curses was Kainushi, but that man also had an uncanny air about him.
　I can't feel that in Razal and the others. I don't know what the difference is between them, but there must be a big wall between them.

　Arbatos had a grudge against the undead to the point of turning into a black dog, but Kainushi's grudge was no less strong.

　He was full of power because of the blood he had received. And tonight is the full moon. My power is higher than ever.

　Maybe that's why I was the first one to notice it, not Senri.
　Maybe that's why I noticed it first instead of Senri. There's probably some kind of connection between me and my people.

　Senri's eyes widen as he realizes this, and he declares in advance.

I'll do it today.

　There is a dense sense of kinship. It's even more dense than the "Skeleton Giant" of the other day. Even though they hadn't shown themselves yet, I could tell that they were serious today. Apparently, the enemy had lost its nerve before we could make a move.
There's a possibility that the sorcerer might come out. If we can capture him, we can talk to him.

　As if to dampen my enthusiasm, Senri said.

I'm not going to reward you for your hard work.

"............

　I'm working for free, but I'm already getting more than my fair share. Sucking blood is not the only instinct of vampires.
　I'm not sure if Razal and the others have sensed the situation from our appearance, but they've gone rigid. I regained my nerve, cowered, and ran upstairs.