A door appeared before my eyes. It was a profound wooden door like the ones you see in temples around the globe. Moreover, this door suddenly appeared in the smack bang center of my room. ( Wh, Wh- What the hell is this?) As expected, this was a huge surprise. I recently discovered through the use of Wikipedia that my birthday was on the same day as my favorite idol. Just when I was gloating on this fact with a bit of satisfaction, this huge door appeared out of the blue. Without a doubt, this made me feel extremely nervous. I was a timid person to begin with. The door partly opens. From my perspective, everything inside the door from here is pitch black. I take out my smartphone and timidly approach the door. Using the light from my smartphone, peer into the crevice. 「W- wh, What is going on right now?」 On the other side of the door is a room made out of stone about six metres squared. The room was similar to a dungeon that you would see in movies. It was confusing because if you looked at the door from the rear, it just looked like any normal door. 「Is this door like a Doraemon door? Does it lead to another place?」 I was tilting my head in contemplation when I suddenly heard a bell-like voice of a girl close to my ear saying, “Yeah, you are quite close, but it is a little bit different”. Just as I was panicking and frantically trying to look behind, my back was pushed from behind, and I fell forward towards the door. 「Ouch…. W, What’s happening?!」 「Nyahahah! Are you surprised? Tell me~ you were so surprised, right now weren’t you?!」 When I looked up, I saw the appearance of a small girl who was floating in the air with her arms and legs crossed. 「Hii!! W-Wh-W-Wha Eh UWAH!」 This was shocking. Similar to an insect, I crawled backwards desperately trying to back away from the unknown. 「Hang on! You don’t have to be that scared of me, you know?」 「Wh-What is this? What is going on? Why are you floating!? Or more like, who the hell are you!?」 「Yeah,yeaha, I won’t do anything bad to you, so why don’t you calm down? Come now, start by taking a deep breath. Alright! Breathe in… and breathe out~」 I do as I am told and take a deep breath in and exhale a deep breath out. Yeah, breathing in is truly effective. I feel like I have settled down slightly. 「You calming down?」 「Y-Yeah, I think so.. 」 Seeing her again a second time, I realized that she is quite a pretty girl. Based on her appearance, I would say she is either a middle school student or a first-year high school student. She has a childlike face and red eyes. Is she wearing contact lenses, perhaps? She has bright red hair that is also short and curly. Two horns are twisting upwards around the temple of her head. Protruding from her broadly smiling mouth are teeth resembling a set of fangs. Her attire was made of provocative bondage-type clothes barely covering the areas between her chest and her groin. (However, her chest area is quite humble.) She looked like the stereotypical succubus cosplayer, and it was probably quite close to the truth. 「Umm… So may I ask… who are you?」 After pondering my question for a while and placing her fingers on her chin in a thinking pose, she said this… 「If I were forced to say…. I would say that I am a campaign girl.」 「Campaign… Girl?」 「Yes, campaign girl.」 The answer was just too unexpected, so it was my turn to make a strange-looking face. Wouldn’t you agree? After all, I have no clue what she means by campaign girl. Without minding my weird expression, she smiles with her whole face and pulls out a flashy celebratory cracker, and raises her voice. 「I am the one who will aid with the Demon Campaign! Congrats! You have been elected as the winner!」 「D-Demon?」 「Yes, Demons.」 「O-O…. Ehm….」 「So a campaign is…」 Seeing that I was becoming flustered at her response, the corners of the girl’s mouth raised into a smile. 「I-I-I-I- I! Did not apply for that type of position!!」 Then the girl raises her index finger in front of my eyes and begins to shake it left and right, using her tongue to make a “Tsk, tsk, tsk” sound. Somehow, this is a little annoying. However, she is cute. It’s frustrating but really cute at the same time. 「This isn’t about you applying for the position. As a 10,000-year commemoration for the establishment of the kingdom of hell, I have been sent here to unconditionally help the human being with the most talent, it’s that sort of campaign.」 「Come again? A human being with talent? Are you talking about me?」 「That’s correct. You may not realize it yourself, however, out of the tens of thousands of people that were potential candidates, you are the cream of the crop, the owner of the highest talent!!」 「I…Is that true? Ehehe, so that’s how it is.」 「That’s right~ You have the extraordinary talent to become the most detestable human being of them all!!」 「….. No, hang on, I ain’t a bad person.」 Her words had interrupted my thoughts. There should be a limit to how wrong she could be. Even if I may look like this, I am the kind of person who would put the change from purchasing stuff at the convenience store into a fundraising box. 「Well, for now, I guess you may say that~ But, even then! Your talent truly rises above the rest. It is to the likes that even cutthroats, swindlers, and even gangsters cannot hope to come close to; your talent is one of a kind!」 「Are you having a go at me…?」 「N,o that’s not it! It is the highest praise I am giving you!」 The girl shakes her head vigorously. We'll sum it up. Here’s the deal! In recent times, the amount of evil that runs rampant has increased, thereby increasing the powers of us demons! To further bolster our forces, I have been assigned the task of aiding those with talent.」 「So.. You are saying that I am it?」 The campaign girl nods and bows her head. For it to come to this, even I have noticed that things were off. There is no way that I would be cheated like this. 「Ah, alright, I understand. I got it. This is a prank, right? You are one of those people who try to trick amateurs, right? Where is the camera? You must be the show host, right? There is no way a demon as cute as you exists, right?」 「You are wrong! I am truly a demon! Even though I might be cute, I am still a full-fledged demon, I am telling you!」 「You aren’t denying the part where I complimented you as cute…. I mean, the thing is, you barely look like a demon.」 When I said this, the girl had a hurt expression on her face. 「I am a Demon-devi! I am a Demon-devi, you know!!」 「Y-You think that adding the word Devi to the end of your words changes anything?! It doesn’t make you appear anymore demon-like, like okay?!」 「 to me! The more you devote yourself to committing crime, you will be able to power up the demons and break the balance of power against the angels-devi!」 「Eh… Well, I don’t believe you. Besides, if what you say is true, wouldn’t that be a bad thing?」 「What’s bad-devi?」 「I mean,n you’re telling me, just because you will aid me, I need to do bad things right?」 「That’s not right-devi! It isn’t really about forcing you to do bad things-devi. You just have to behave according to yodesiresevi, then all will be well. If all you do is do something you yearn for, that can’t be considered something to blame, can it?」 I wonder if she is just stubborn or if she doesn’t want to give up, but for some reason or another, she has continued to add the word “devi” to the end of her sentences. Well, it probably is in bad taste if I continue teasing her about it, so let’s just stop that for now. 「But, doing that kind of thing… Isn’t there a catch to it… for instance my soul will be damned and at the end of it all I will end up ruining myself or something of that nature?」 I knew it. From reading a lot of manga and short stories, the bad guy always gets a bad ending. 「Ahh, noa, that sort of thing doesn’t exist. That’s the kind of nonsense the angels made up to scare humans.」 「Nonsense?」 「That’s right. Rewarding the good and punishing evil is just nonsense. In short, this campaign will only have good things. Both the angels and the demons are doing the same things- Devi. To begin with, who gets to decide what is considered evil and what is considered good?」 「No.. Well, isn’t that kind of thing obvious?」 「It isn’t obvious! The truth is that it is like the colors black and white. Right now, the influence of the angels is stronger, so “good” is what is considered as “right” in society… devi.」 「Ehh, so what you are saying is that if evil runs rampant, then being “evil” will be considered as the “right” thing in society?」 「That’s right, Devi. The mighty are right. If demons hold power, then evil will surely become justice-devi. And so, you have an enormous amount of evil hidden within your heart-devi. Surely, in the future, it will get out of hand. The way it’s going because you have no power to speak of, the best you will achieve is to become a small villain, at that point you will be going in and out of jail and achieve nothing in the future, that will be your fate-devi.」 I have no idea what she is saying. Even if I look like this, my grades are pretty good, and I received an A grade in my mock exams. I can be considered one of the most diligent students in my grade. My negative points are that I am not good at sports and a little bit overweight, and short. However, my mother told me that when I grow up, those sorts of things will no longer be relevant. 「At any rate, I refuse!」 「Don’t be like that, for the time being, how about you do1-monthnth trial?! Just consider it like a discount ticket to the amusement park, I will even cover the startup costs- devi!」 「Are you some sort of telemarketer advertiser?!」 At this point, I was having fun sharing a moment of innocent banter with her. After all, it couldn’t be helped. I have never talked to a girl like this before. 「Ahh, well fine, then tell me what kind of power can you give me?」 「Oh! Are you becoming interested in Devii?」 「I am willing to just listen for now.」 「Fufuhun, hear and behold! I present to you this room device!」 「Huh? This room?」 The girl pointed at the other side of the door. What would I gain by receiving a gloomy, stinky, narrow stone room like this? I guess I could use it as a storeroom? I was amazed at how ordinary this all seemed. On the other hand, the girl puffs out her chest full of pride and confidence. 「To be more accurate, you will be able to summon this room-devi!」 「….. How doubtful.」 「Well, well, would you listen to me to the end-devi!」 After that, the explanation that followed was considerably long. To be honest, it was so long that I was becoming fed up with her explanation. It’s hard to keep focused, but the summary of it all is as follows. －－－－－－－－－－－－－－－－－－－－－－－－－－－－ 1. Icano summons this door whenever and wherever. 2. This door can only be seen by the owner and the person the owner grants permission to see. 3. If the room is deleted from existence, anything in the room will also be destroyed, so caution is required. 4. Once a person sets foot inside the room, they will not be able to leave without the permission of the owner. 5. If the level of the room is increased, the abilities of the room will also be upgraded. －－－－－－－－－－－－－－－－－－－－－－－－－－－－ 「The way it is used will depend on how you use it. You can use it as a storeroom if you like or even a hiding spot. There is no penalty whatsoever for using it. It doesn’t sound like a bad deal, right? Umm, if I am not mistaken, our name is….?」 「My name is Kijima Fumio.」 「Okay, then I will refer to you as Fumi Fumi kay?」 「What kind of an alias is that?!」 「Isn’t it fine! Anyways, I will leave you with this ability! I’m going now, Bye.. Devi.」 Saying that, just like she first appeared, she suddenly disappeared from view.