I woke up in the middle of the night with a hint of danger.
　Immediately after, something comes into the room.

　Hmm, what does it want at this hour?

　He pretends to be asleep, and then jumps on us as we sleep in bed.
　He grabbed her by the neck and flipped her over to the floor with force.

''Aaaaah!''
Kite?

　It was Kite, who looked like a different person than in the daytime, whose eyes were bright red, fangs bared and a mysterious voice was raised.

'Hey, what's going on?'

　Laina, who was sleeping beside me, also seems to have woken up and asks me while getting ready.

''I don't know. I don't know, let's just let her sleep for now.

　I used white magic to force Kite to sleep.
　I applied it pretty hard and he finally fell asleep.

　Thump thump!

　Just then, I heard a violent noise from the next room where Ark and Leila were supposed to be sleeping.

''Oh, Ark!　Leila!
Don't worry. I'm sure you two can handle this.

　When I went to their room, I found Kufa lying on the floor.

'Suddenly my sister was scared out of her mind!
I don't know what's going on.

　They report back to me.

'Oh, hey, look out,'

　Laina pointed out the window as if she was impatient.
　When she looked, she saw people walking towards somewhere, even though it was the middle of the night without a single light in the city.

''Laina, take care of Kite and Kufa. You'd better tie up your body with a rope or something just in case you wake up.
What are you doing?
I'm going to take a look around. Ark, Leila.
Huh?
Are we going with you?
Of course.

"Covert", I followed the people of the city with the twins.
　People came out of nowhere, and before we knew it, there were quite a few of them.
　And they were all heading in the same direction.

　While waking Leila, whose eyelids sometimes closed, we eventually arrived at the Red Academy.
　It seems that they are gathering in the square of the academy.

''I see, that's the source of this?''

　At first glance, the one in the center of the square appeared to be a group of humans.
　However, from the signs they wore, you can tell that they are not similar to each other.

"Dad, what are those people?
Probably a demon.
My people...

　As I ducked behind the building to watch, I realized that those demons were biting the people of the city around their necks.

''Vampires........''

　Ark murmurs softly.

'Hmm, you know your stuff.'
...because I read about it in a book.
Do you have a book like that in your house?

　Anyway, as Ark says, that's probably a vampire, a type of demon race.
　Probably it is sucking the blood of the people of the city.

''Why are they sucking you quietly?''

　Leila asks curiously.

'Vampires have the ability to turn their blood-sucking counterparts into household members.

　Kite and Kufa must have been manipulated as well.
　It seemed that they were simply being sucked out of blood, so I decided to check out the city without touching them for the moment for today.

　Then I discovered that the people who remained in the house would also turn red and attack me if I approached them.
　Apparently, when they found a human who hadn't been attached to them, they would try to suck their blood on their own.

　Apparently, that's how the people of the city were placed under the control of the vampires one after another.
　It's like an infectious disease.

　Moreover, upon further investigation, it wasn't just in the area where this red academy was located.
　People living in the vicinity of the other academies also gathered together and were being sucked by vampires there.

　The magic city was divided into six regions around the six academies, and each region seemed to be managed by a different vampire group.

''It's getting pretty messy.

　The magic city hadn't been able to repel the demon king's army.
　On the contrary, it seems that the city had fallen into the hands of the demon tribe without the people involved knowing about it.






　The next morning, Kite and Koofa woke up as if nothing had happened.

''Huh?　Last night?　There was nothing unusual about it, but...
In fact, I don't remember any of it. I've been sleeping through the morning lately.

　Neither of them could remember last night, apparently.

　According to one theory, vampires are vulnerable to the light of the sun.
　Maybe they can only be subordinate to it at night.

''We're going to visit the Yellow Academy today, so you can show us around.
'Really?　You'll still be in the city for a while, right?
Yeah, I'm gonna do that.

　I don't tell Kite and the others the truth, just in case, and I leave the house with Laina and the twins.

'What are you going to do?'
Of course we'll take down the vampires. I've already located them last night.

　Their hiding places were all magical academies.
　There are many places in every academy that not many people enter, especially in the basement where there are several mysterious rooms.
　It seems that they use it as their base of operations.
　And if it's underground, they don't have to worry about the sun's rays even in the daytime.

　Humans are the equivalent of food to vampires.
　If they try to fight and take the city, they will lose that precious food.
　So they would have to secretly control it from the inside so that they could have a safe and permanent supply of blood.
　What a cunning and frightening approach.

　But maybe that's why we were caught off guard.

　When we rushed into the room, the vampires were apparently sleeping soundly.

''Huh?　Two, human...?

　He jumped up in a hurry, but by that time, several of his compatriots had already been cut down.

''Ei!''
Yeah!

　Ark and Leila also ran around the room, cutting down vampire after vampire.

''What the hell are these guys?　Ha, ha, ha.
I'm not letting you go.

　The vampires ran to the entrance of the room in a hurry and fell prey to Laina's sword that was waiting for them there.