A small horse-drawn carriage that runs on a highway with small lights lit while the sun sets and the entire area is covered with darkness. There are two figures in the seat, and one is a silver girl who stands out with a lamp in one hand and looks at documents on her knees. The other is a strange-looking person wearing a strange mask and black cloak and holding a horse's bridle. Its identity is the Mirage of the Demon King's Four Tenno Illusions, and his deputy officer, Astart.

"Hey, Tart, don't you stop checking your documents until you're on the move? Reading in the dark makes your eyes worse, and it's hard to sign in the first place. That's right. "

"In words, Mirage-sama, if I don't clean up to some extent during the trip, I'll end up working in the daytime ... I'm making a really bad proposal."

Astart dismisses Mirage's proposal. The two had been working on paperwork while taking turns over the person from a while ago. The Astalt and Mirage desks in the phantom castle's office are currently marked with several magical signs. Mirage repeatedly used the transfer magic to remove the documents left by his subordinates, and then returned to the desk when the response was over. The subordinates in the office receive the documents, and then place new things on the desk.

"Certainly, I can't say anything if I say that ... I never thought I'd be busy with paperwork until I got to the negotiations ..."

"Conveniently called the transition magic of Mirage-like ... No, it's useful ... No, there is a very convenient magic, so it's natural to use it effectively."

Yesterday's edict from the Demon King, he is heading to the area where the wolf demons live. However, if the top two ghosts leave the castle, the situation is not very good. Of course, you can't get it back after a few days, but it's premised that the Mirage can work during the day. As it was not possible, Astalt proposed this method so that work would not be hindered, and thoroughly informed phantom soldiers. Basically, you only exchange documents, but if there is a problem, a letter will be attached to the document. Assuming that the contact ball is deviated by any chance, Mirage and the tart have a pair, and they are doing their best.

"Tart-chan, I can't hide my intention at all. Well, even the Demon Army is a convenient carrier, and I'm used to it.

"Yeah, it looks like a pirate. It's a hassle to say that even the only one is late because of Mirage, the late demon."

Although many demons are governed by the Demon King's army, there are still pirates and demons appear on the highways. The situation around this is the same for humans and demons. And both Mirage and Astalt continued to talk naturally without any particular panic. Of course, Astalto does not forget to poison Mirage as usual. It goes without saying that Mirage was eventually late in the evening with Yulia.

"What do you do? I think Tart is better at dealing with it."

"... Do not push me anything in that way. Well, I have no time and I will handle it."

As soon as the story is decided, about ten pirates jump out of the darkness.

"Ouou Teme, if you miss your life, the whole carriage ..."

"Illusion de Freille"

"Leave it ...! But, oh, oh, oh, oh!"

"Wow ah ah! Stop it! Stop it!"

"Good, help, help, help ..."

Several pirates greet you from the front to stop the carriage, but Astalt spells his magic with both hands and screams and begins to whip around. The same is true for those who are trying to attack the carriage from the side and those who are approaching from behind, each of which seems to be lying on the ground.

"... windstorm"

Mirage then blows off the front bandits with wind magic, and the carriage goes on without slowing down, as if nothing had happened. Astalt resumed paperwork, and Mirage used transfer magic to remove two test tubes with liquid.

"Yes, Tart-chan, it's a mana-potion. I think it's my specialty so it's easier to drink than a commercial product."

With that said, he handed one Mirage's special mana-potion to Astard, and also removed the lid of the test tube and swallowed the contents. Astart stared at the test tube with suspicion, but after seeing Mirage drink it up, began to moan its contents as determined.

“Nuku, Nuku, ぷ…. Indeed, that distinctive bitterness and the irritating feel left in the throat are considerably diminished. The seasoning is also somewhat sweet. And when did you develop such a thing in the meantime? With such quality, I think that the Demon King should mass-produce it, but why is it not announced? "

"I want to do this in the mountains, but in the first place it's a very scarce material and unsuitable for mass production, and it requires a lot of skill in formulating and fixing magic. I thought I couldn't make anything but ... I'll tell Tart-chan later that both the hallucination magic and the combined magic this time were almost perfectly controlled in their magical powers. I don't think it's a problem. "

The technology of simultaneously exercising two magics to create a new magic-a composite magic-naturally requires a long time and unusual talent to learn. Simultaneously operating different magics is said to be the goal of the wizards' lives, and is the culmination of magical skills that require high skills. In addition, the difficulty level of compound magic varies greatly depending on the difficulty level of the two magics to be combined, and Astalt combines these two skills: hallucination magic, which he is good at, and brainwashing magic, which is a unique magic of the demon family. Hallucination magic and brainwashing magic are both magics that work on the opponent's brain using their magical powers, and are extremely difficult to control even when used alone. At the same time, as well as swiftly exercising against multiple distant opponents, Astalt's ability has now grown into an immeasurable realm.

"I told you the other day, but even if you are encouraged to do so, you will not reduce your work on the move. And when you compare it to Mirage, you can say that it is still immature. There are many things to improve, such as the range of effects and the maximum number of people that can respond. ''

"Tart-chan is really serious. Still, his skills are tremendously improved compared to when he met him.

Madness-That's two names, Astalt. Like the pirate just mentioned, planting and amplifying the feared object by brainwashing magic, and making it actually feel with hallucination magic, those who are magically attacked by Astart scream in a painful scream and almost stunned I will. The name of the opponent going mad without touching it was crazy, and it was the opposite of Astalt who likes tranquility.

"I don't really like those two names, but ... I have to be even more devoted to catching up with Mirage's hidden abilities."

Asart, who still answers plainly with no expression, Mirage gets stuck when he hears the words.

"Oh, oh, what are you talking about, Tart-chan. I guess it's almost the same as me, or I'm missing out on magical techniques. The important thing is that it is comprehensive and applied. ''

Mirage refutes to Astart with a dry laugh, though he is upset and is about to drop the reins. Even in view of the ostensibility that the Demon King has shown, Mirage thought that the ability to show the latest Astalt has already surpassed it, and that the day of the replacement of the four kings is near.

"How many years do you think I've been subordinate to Mirage-sama? Surely it seems to be hiding quite well, but it's just that Mirage-sama's ability is at an even higher level. I've always served this side, and of course I think there's some reason, and honestly I don't want you to work a little more aggressively with that power. ... I've already given up on that area, because I'm sorry that Mirage-sama is a good example, a bastard, and a sample of a bad boss. I will. "

With that said, Astalt is staring at Mirage with his eyes. Mirage was amazed at why there were so many intuitive and understandable women around her, saying Julia and Tart. At the same time, Mirage realizes that it's also a great pleasure, and that's why it's too hard to determine his answer. The demon Mirage and the human Farsa, they only know one of them, but their relationship will definitely break when they know the other. Mirage was vaguely anxious that he had to choose between demons and human beings somewhere, and that he was not far from when he was forced to make a choice between the four heavenly kings and the wizard of the brave party, We've come all the way up to now.

"I see ... That's right. Thank you Tart-chan. I'm very happy to have such an excellent subordinate as you do."

Mirage begins to stroke her silver-colored soft hair with natural movements, as if she had been seen overlapping with Julia somewhere. Astalt shook his shoulder for a moment, but resumed his paperwork with no expression as usual, and Mirage squeezed his hair with his left hand, grasped the bridle with his right hand, and stared at the darkness while staring at the darkness. Was. In the dark, the carriage keeps moving, relying solely on the light of the lamp. For a while, the only rustling noise of the slightly rusty wheels was ringing around them.