If I remember correctly, I went to school yesterday as usual and it was normal as usual. After school I went to Matsuda's house and had a porno marathon with him and Motohama.
Then I returned home. On my way home, I was attacked by a weird person with wings—
Then I realised the unusual state I was in.
—I'm naked.
I didn't have anything on me.
What the heck is this? I don't even have my underwear on!
I'm fully naked!
I don't remember it. I don't remember coming home. Am I losing my memory at this age?
I also don't have a habit of sleeping naked either.
"...Unnn"
—!
I heard a sweet voice.
Then I carefully looked beside me.
"...Suu~suu."
There is a crimson haired girl sleeping beside me.
And she's naked... Her snow-like white skin is too bright for my eyes.
Her skin looks very smooth and it's very bad for my eyes.
...
No matter how you look at her, it's Senpai. Our academy's Idol. Her crimson hair scattered over the pillow looks extremely beautiful.
Rias Gremory-senpai.
...
Huh? Huh, Huh?
Calm down, me. Oh yeah, at times like this it's good to count prime numbers to calm down.
2, 3, 5, 7, 11, 13, 17, 19, 23...
Daaaah!!
I can't! I can't calm down!
Why am I sleeping with Rias-senpai!?
What happened!? What happened!?
No, what did I do!? Did I do something!?
I don't remember! I don't remember one bit!
Why!? I have to remember what I did! No! Why am I in this situation!?
Did I have sex with Senpai!?
Eh? Do people lose their virginity like this!?
Impossible! That's impossible!
Remember, me! Try to remember valuable memories, me!
What did I do!? What kind of stuff was I able to do!?
My head is about to explode because my head is getting confused, but I get cornered in the next moment.
"Ise! Wake-up! It's already time for school!"
"Okaa-san, is Ise still in his room?"[2]
"Otou-san, his shoes are in the entrance so he came home. Geez! Staying at a friend's house so late! On top of that, being late for school! That, I won't forgive!"[3]
The conversation between my parents on the first floor can even be heard up here.
Then it was followed by footsteps coming up the stairs. The footsteps carried the sound of anger. It's different from her usual footsteps.
Mum's on her way!
Wait! Hold on a sec!
If she sees this situation, then it will be really bad!
"Wait! I'm already awake! I will get up now!"
"Geez! I won't forgive you any more! We need to have a little talk about this!"
Mum's pissed!
She's coming! Mum is coming to my room!
There is no way I let her see the situation I am in!
"Unn... Is it morning?"
—!?
Senpai is wiping her eyes beside me!
She woke up! She woke up!
GATCHA!
The door bursts open. At the same time Senpai also lifts her upper body up.
My eyes and mum's eyes meet each other. She looks mad. She looks very mad!
"Good morning."
Senpai greets my mum with a smile.
Mum's eyes moves from me to Senpai.
Then, mum's face froze. She moves her eyes to me again.
I avoid eye contact.
"...GET READY QUICKLY."
While using a machine like voice, she closes the door slowly.
After a moment, I heard the loud noise of her feet heading down the stairs.
"O,O,O,O,Oooooo! Otou-san!"
"What's wrong Okaa-san? You look like you just saw a ghost? Was Ise doing something perverted in the morning again?"
"Seeeeeeee, sexxxxxxxxxx!! Ise did~! With a foreigner~!!"
"—!? O-Okaa-san!? Okaa-san, what happened!?"
"Internationaaaal~! Ise did!!"
"Okaa-san!? Okaa-san!? Calm down!! Okaa-saaaaan!"
I can only cover my face with both my hands.
It's easy to imagine what's going on downstairs.
How can this happen? There's definitely going to be a family discussion after this!
What kind of excuse can I use to explain the current situation I am in!?
"Your family is quite lively in the morning."
Senpai got up from my bed and went to pick up her uniform from my desk.
A naked Senpai. The naked body of a beautiful girl.
...Ummm, you know I can see a lot of things...
Her small hips. Her long white legs. Her thighs. Her nicely shaped butt.
And her oppai which are quite enormous...
I can even see her nipples clearly!
Why aren't you hiding them!? Why aren't you showing any sign of hiding them!?
If I had Motohama's "Three-size Scouter", I could have easily gotten her measurements accurately.
Right now, I'm regretting the fact that I don't have that ability.
But I know one thing. I have seen lots of women's naked bodies from magazines and videos, but the beauty of Senpai's body is much greater than them.
How should I put it? Art? A body with a perfect shape and curves. It looks like one of those nude body paintings or statues shown at the museum.
Perfect. The only thing I can say is that "the beauty was still amazing after she stripped her clothes".
But staring at her is making me feel bad.
I can't become a complete pervert.
"S-Senpai!"
I can't help but say it.
"What is it?"
"O-Oppai...I can see everything!"
I said it while looking away from her. I want to see it, but that's that. I have to endure it.
"If you want to see it, then go ahead."
Senpai says that daringly while putting on her uniform. She's putting on a smirk.
—!!
Japanese words like that exist!?
An electric shock went through my body!
Tears are falling from my eyes because of the phrases you can never learn about at school.
I'm deeply moved by the beautiful phrase.
"Is your stomach all right?"
Senpai asks me.
Stomach?
I touch my stomach while watching Senpai get dressed.
"You were stabbed yesterday."
—!
With that statement, I was fully alert.
...That's right, I was stabbed by a guy with wings at the park yesterday.
I was stabbed by a spear that looked like it was made up of light.
But there aren't any marks left on my stomach. I was sure there was a hole... It's not a kind of wound that will heal in a day. There was so much blood coming out of it.
That wasn't a dream? Or was it a dream?
"By the way, the incident from yesterday wasn't a dream."
...Senpai says it as if she read my mind.
"I-I was sure I was wounded..."
"I healed it. It was critical, but thanks to your tough body, it was healable with my power in a night. I shared some of my demonic powers with you by embracing you while we were naked. I was able to do it because we are from the same clan."
What is...this person saying?
Huh? Hugged each other while naked?
...
Eeeeeeeeeeeeeeeeh!
Wait, does that mean...!
"It's all right, because I'm still a virgin."
She says it as if she read my mind again.
Ah, is that so. For some reason I was relieved.
Or should I be relieved?
"Don't make such a weird face. This world is surrounded by more mysterious things than you can imagine."
Senpai approaches me while in her underwear. She starts to pat my cheek with her slim fingers.
My face gets red. It can't be helped if my face gets red since a beauty like her is doing it.
"I am Rias Gremory. I am a Devil."
—-Devil?
Huh? A joke? I'm not really sure...
"And I am your Master. Nice to meet you, Hyoudou Issei-kun. Can I call you Ise?"
...but her devilish smile looks real.
Part 6
"Itadakimasu."[4]
To my grandpa in heaven.
Right now, in our home, a beauty is drinking miso-soup next to me.
"These are very delicious, Okaa-sama."
"Y-Yeah. T-Thank you very much."
Both my parents who are sitting across from me have weird expressions on their faces.
Grandpa, how am I able to fix this weird atmosphere?
It's my first time eating breakfast in this weird atmosphere, and I'm not sure what to do in this situation.
"Ise, it's the meal that Okaa-sama made. Eat it."
Senpai says it with elegance. She's acting like an older sister.
"Y-Yes!"
I replied quickly and started to throw the food into my mouth.
"Don't eat it in such a vulgar way. Eat slowly so you can taste the food. This is the precious food that Okaa-sama made for us."
Senpai wipes my mouth with her handkerchief.
What is this? What kind of situation am I in?
"I-Ise..."
Dad spoke to me with a trembling voice.
You look quite nervous Dad. So am I.
"W-Where did this lady c-come from?"
After hearing that, Senpai put her chopstick down and bows her head.
"...Oh my, I apologise for not introducing myself... I brought shame to the House of Gremory. Please allow me to introduce myself. Okaa-sama and Otou-sama, my name is Rias Gremory. I attend the same Academy as Hyoudou Issei-kun. It's a pleasure to meet you all."[5][6]
Senpai smiles. Dad responds with a weird face.
"I-Is that so... T-That's amazing. Hahaha! Are you from a foreign country? Your Japanese is very good."
"Yes. Due to my father's work, I have been living in Japan for a long time."
Oh. Looks like dad is convinced.
But it seems like mum, who is sitting beside him isn't.
"Is Rias...-san correct?"
"Yes, Okaa-sama."
"What kind of relationship do you have with Ise?"
—!
That's a good question, it can answer the whole situation from earlier.
Mum is curious for her answer, but Senpai just continues to smile.
"We are just a senior and a junior who are quite close to each other, Okaa-sama."
"That's a lie!"
Mum rejects the answer immediately.
Of course she would. That excuse won't work, Senpai. Since she saw that situation, that excuse won't work!
"Be-, be-, bbbbbbbecause! On the bed!"
"Ise said he has nightmares, so I was just sleeping with him."
"Just sleeping together!? B-Both of you were naked!"
"Nowadays, people sleep naked when they sleep together, Okaa-sama."
That's a big lie. You are amazing, Senpai.
But mum becomes quiet at her words.
"I-Is that so...? So people sleep together naked lately."
Okaa-sama!? Is that all right!? You are okay with that!?
Then I realise that mum's eyes look weird. They look empty, as if she was possessed by something.
After that Senpai whispers in my ear.
"...I'm sorry. It looked like it would become troublesome, so I used my power."
Power?
Then I remember what she said earlier.
—I am a Devil.
...Devil. Then this is also because of a Devil's power?
Senpai resumes eating her breakfast. When I checked, dad also had hollow eyes. Did she use her power on him as well...?
A Devil.
What is going on?
Part 7
Morning walk to school.
I'm walking towards school, but I'm having a hard time because of the way other students are looking at me.
That can't be helped.
Next to me is our school's idol, Gremory-senpai.
And I am walking like her servant because I am carrying her bag.
"Why is someone like him..."
"Why is someone vulgar like him next to Rias-oneesama..."
I can hear the screams of both boys and girls from every direction.
There are some students who fainted because of the shock.
Is it that bad!? Is it that bad for me to walk besides Senpai!?
We walk through the school gate, and I split with Senpai at the entrance.
"I will send someone to get you. Let's meet again later."
She says that while smiling.
Send someone? What does she mean?
I'm not quite sure, but I walked towards the classroom.
When I open the door, everyone stares at me.
Well, that's be normal, since I was with Rias-senpai.
BANG!
Someone hit my head from behind. When I turned around, Matsuda is standing there. Motohama is beside Matsuda as well.
"Give me an explanation!"
Matsuda shouts while crying. From his expression, I can guess what he wants to say.
"Until yesterday, we were the "Unpopular Alliance" comrades!"
"Ise, first of all explain it to us. What happened after we split?"
Unlike Matsuda who is furious, Motohama is acting all calm while fixing his glasses, although his eyes are really sharp. Both of you are scaring me.
But I laugh, and then ask them with a confident voice!
"Guys, have you ever seen real tits before?"
With that one sentence, both of them tremble in fear.
Part 8
After school.
"Hi. How are you doing?"
I look at the male student, who came to see me, through half-lidded eyes.
The guy in front of me is our school's number 1 best looking prince, Kiba Yuuto.
He captured the hearts of the girls in our school with this smile of his. By the way, he's in the same year as me. Though he's from a different class.
You can hear girls screaming with joy from the classroom and the corridor. Shut up. It's so damn noisy in here.
"So what business do you have here?"
I reply to him in a dismissive tone voice, but Kiba responds without breaking his smile.
"I came here by the order of Rias Gremory-senpai."
—!
With that one statement, I immediately understand why he is here.
I see, so he's the person Senpai told me she would send.
"...OK OK, so what do you want me to do?"
"I want you to follow me."
NO!!
This time it's the girls' screams.
"No, for Hyoudou and Kiba-kun to walk besides each other!"
"You will get infected, Kiba-kun!"
"I won't agree with the Kiba-kun×Hyoudou pair!"
"No, maybe its Hyoudou×Kiba-kun pair!?"
They are saying some weird crap.
Shut up. Seriously shut up.
"Ah, all right."
I agreed to follow him.
I will say this beforehand. I hate good looking guys.
I followed Kiba, who is already walking ahead of me.
"H-Hey, Ise!"
Matsuda shouts my name.
"Don't worry, friend. I'm not going to have a fight."
That's right. You don't have to worry about me, pal.
"What are you going to do with this DVD, "Me, the Molester, and the Udon"!?"
Matsuda says it out loud while holding the DVD up high.
I then look out the window.
I followed Kiba, and the place we end up at is the back of the school building.
In this place, which is surrounded by trees, there is a building called the old school building.
Apparently it was used a long time ago, and there is no sign of people here. It's so creepy that it is listed in one of "the seven wonders of school".
The building looks very old and is made from wood, but there aren't any broken windows and it's hard to tell if there are any broken parts from its appearance.
It's old, but it isn't that bad.
"Buchou is here."[7]
Kiba says.
Buchou?
Is he talking about Senpai? Huh? Buchou?
Did Senpai belong to a particular club? Does this mean he is part of that club as well?
It's getting even more mysterious. Oh well, as long as I follow this guy, I will be able to meet with Senpai.
We entered the two story high building, and went up the stairs. We went further into the building.
Even the corridor looks clean. It seems like even the rooms that aren't used don't have a single speck dust in them.
When you think about old buildings, you expect it to be full of insects, spider webs, and dust. But I haven't seen any yet.
So they must be cleaning this building quite often.
While I was thinking about these kinds of things, we seem to have reached our destination. Kiba stops in front of a particular classroom.
I was shocked by the sign on the door that read—
[Occult Research Club]
Occult Research Club!?
Just reading that name makes me wonder. I'm not saying that the club sounds weird.
But thinking that Rias-senpai is the member of the Occult Research Club is...
"Buchou, I have brought him."
Kiba waits for the approval through the wooden door. Then Senpai replies.
"Yes, come in."
Looks like Senpai is inside here.
Kiba opens the door and I'm shocked when I follow him into the room.
There are weird signs and words in every area of the classroom.
The floor. The walls and the ceiling. They are all covered with weird signs.
And the one which stands out the most is the circle drawn at the center of the room.
It looks like a magic-circle that takes up most of the space in this room.
I can feel something creepy and weird from it.
There are also a couple of sofas and desks in the room.
Hmm? There is someone sitting on one of the sofas. It's a girl with a small build...
I know her. I know that girl!