Chapter 1 – Mysterious sadness

I, Hyoudou Issei, live in a very noisy household. It's only natural since there's so many bishoujo that live in it. However, Rias, Azazel-sensei and Kiba are absent at the moment due to their mission in Romania. This means that ther is a lot of fighting between the remaining girls (and, which does bother me a bit, Gasper, my kouhai who is a boy but dresses as a girl) over me. Of course Asia can't lose because she always sleeps with me, but the others fight over their positions on the bed. Usually Akeno-san wins. She is a [Queen] after all. A [Queen] with huge oppai which bring me a lot of joy.

We had a pretty serious situation with the magicians after Rias left. I had to fight battle-freak dragon Grendel. That dragon was supposed to be killed ages ago! How did they manage to resurrect him? Anyway, the fight was provoked by the magicians' abduction of my three kouhai: Gasper-kun, Koneko-chan and Ravel. I was especially concerned with Ravel's fate since she's from a very powerful Devil family. The last thing I need is the wrath of the house of Phoenix because I couldn't take care of their daughter.

The thing is, she wasn't hurt. Neither was Koneko-chan. Even Gasper-kun wouldn't have been hurt if he didn't stand up for his comrades. Luckily we have Asia who can heal him without much problem. The main point of the magicians' strategy was to have me fight Grendel. I don't really understand why they had to abduct my three kouhai. They could just challenge me.

After the fight we all got safely back to Hyoudou residence. But even I saw there was something wrong. Koneko-chan was sad ever since we came back. Usually she was emotionless so sadness on her face was a definite shock. She didn't even respond to questions. Akeno-san asked her what's wrong but she just ran away.

''What's wrong with Koneko-chan?''

It was Ravel who asked. My manager, daughter of the house of Phoenix and Koneko-chan's classmate. They usually didn't get along very well. They took care of each other, but quarelled over the smallest things. Lately their greatest fight was whether my lap was reserved for Koneko-chan or not. I couldn't pick any side because both would hate me if I were to choose the other, so I had them both sit in my lap at the same time.

''Ara, ara, she's very weird even for her.''

I could see in Akeno-san's eyes that she was very concerned.

''I'll go check what's wrong. I would also like it if you don't interfere.''

I had to say that. Lately neither of the girls could be controlled. Does Rias's absence really count for that much?

I knew she went to her room. I gently knocked on her door and asked if I could come in.

''… OK.''

A very weak voice answered! I slowly entered, aware of the fact she could assault me if she wanted. Luckily for me, nothing like that happened. Instead, she was lying on her bed with red eyes. When she saw me, she became a bit happier.

''… Ise-senpai.''

''Why were you crying, Koneko-chan?''

''… Close the door first, please.''

I did as ordered and then went to the bed and sit down next to her. Her small figure looked even smaller with all the sadness surrounding her.

''… I am so weak.''

''What are you talking about?''

''… I couldn't even protect Gasper-san and Ravel-san from the magicians.''

''That doesn't mean you're weak. You were just shocked. I was very shocked as well.''

''… I couldn't fulfill senpai's request.''

''I couldn't fulfill the promise I made to Raiser-sama. I feel bad as well. But I will train even harder now so that next time something like that happens, I will be ready and protect all three of you.''

''… Please be my sparring partner. At least until Kiba-san returns.''

She looked at me with her cat eyes. She was very cute. I couldn't resist her wish.

''Of course. Gladly.''

She looked happier. She made her cat ears and tail appear and jumped on me.

''… Ready for some sennjutsu therapy?''

I let myself in. She helped me recharge my lifespan with her sennjutsu. Lately she started doing it while we were both completely naked because sennjutsu apparently works best when skin is in direct contact with skin. I won't deny, she was very cute while lying naked on top of me. It was very hard for me not to imagine lecherous things, so I usually got slapped a few times every therapy. Somehow she always knew when I was thinking of something naughty.

Next morning when I awoke, all the girls were in my room and on my bed. Gasper-kun was also in my room, but he had his box in the corner of the room. He stayed in our house because he was afraid of being alone in the house they shared with Kiba. The bed was too small for all the bishoujo, but somehow they all managed to fit on there without throwing me out of the bed. Koneko-chan was already awake and sitting on my chest. I barely felt her, that's how small and light she is.

''… Are we going to train or not?''

So direct! I have just awoken, you know?

''… I already made all the things you usually do in the morning.''

She's so eager. There is just no way you can stop her. So I tried to gently get out of bed without waking everybody up. It was especially hard to escape Akeno-san's embrace. She used me as her hugging pillow, very similar to what Rias did. I somehow managed in not waking up everybody. We then went in the underground floors of our home to spar. I wanted to activate my Balance Breaker armour, but Ddraig was sleeping. He's still pretty tired since keeping me alive in the Dimensional Gap. Which meant that I could only hope to not be hit by any of Koneko-chan's attacks. She is very strong despite her small build. She is a [Rook] so it isn't very surprising.

After a while I tripped and fell on my back while she was attacking. She tripped over my feet, which stopped her attack, but she still fell on me.

''… Are you alright?''

She was definitely concerned. But that wasn't the only thing. The way she looked at me was… different. There was something present in her eyes I haven't usually seen. I have only seen it once before and that was when she was in her mating season.

''… Senpai…''

Her tail showed itself, followed by cat ears. She blushed.

''Koneko-chan, is everything okay with you?''

Before I knew it, she was naked! Koneko-chan! I can see your little oppai! Not only that! Your important part as well! Why aren't you hiding it as you usually do? It's not sennjutsu time yet!

''… My senpai…''

She started licking my neck with her little tongue! It felt so good! No! I can't! You can't! I-It's not appropriate! Not to mention dangerous! W-What will happen if by any chance Asia or Akeno-san decide to come down and see us this way?

''Ara, ara, sennjutsu so early in the morning?''

A-Akeno-san!

''Ufufu, this cannot go simply like this.''

Saying that, she undressed her kimono! Akeno-san! I can see your naked body! Your huge oppai!

She came to us and hugged me from the side! Her oppai were on my chest.

''Fufufu, is this some new exercise program, Koneko-chan, Ise-kun? I like it.''

She also started licking my neck! I thought my head would explode from the feelings! Luckily I started to use medication to stop my nosebleeds, otherwise I'd have already lost consciousness from blood loss.

''…Akeno-san, we were training.''

''I see. Ufufu. Why are you naked then?''

''… He tore my clothes.''

Koneko-chan! You know I didn't!

''A-Akeno-san, I didn't, I swear! I-I just tripped!''

''Ara, ara. Someone here is lying. Koneko-chan, how did he tear your clothes if they are right behind you?''

Koneko-chan became bright red.

''… I just wanted to train to become stronger so I can protect Gasper-san and Ravel-san.''

''Weird way of training, if I do say so myself.''

''Akeno-san! Please, don't be rude to her! She's already sad enough!''

''Ara, I'm not rude. I'm not even angry at her. I'm just teasing her a bit.''

Right. She is a sadist in battle and likes to fool around all the time. Even with Rias.

Koneko-chan started crying and ran upstairs! I will go to her as soon as Akeno-san will let me.

''Ise-kun.''

''Y-yes?''

''What did you do to her?''

''I-I didn't do anything!''

''Fufufu. And I thought I could have some fun with the both of you. Well, better luck next time, I guess.''

Saying that, she gets up, dresses and leaves! Only then I realize Koneko-chan left her clothes here. I pick them up and go to her room.

I knocked and entered when I heard her crying. She was still naked with the ears and tail showing. I shut the door, went to her and hugged her from behind. Her skin was very soft. She didn't even try to punch me. She just turned around and hugged me back. Before I knew it, her lips reached up to mine! My eyes widened in amazement at her tongue running around my mouth, exploring all corners.

When she stopped, she wasn't crying anymore. She just looked at me with wanting eyes. After a minute or so, she got sad again.

''… I can't.''

''What's wrong, Koneko-chan?''

''… I can't… make love to you before Buchou.''

Did she just say that?!

''… Buchou is indeed a lucky girl. She has a body that is big enough to carry a baby. Big oppai so you can grab them. And a reservation for your virginity.''

She looked down in sadness again.

''Koneko-chan! Don't be sad because of that. It's true your oppai aren't big, but all oppai are good!''

She looked happier.

''… You really think that?''

''Of course! I'm the Oppai Dragon, after all! I can't discriminate girl's oppai!''

She lightened up. At least she wasn't crying anymore.

''And you also don't have to worry about my virginity. Rias took it the night before she left.''

I whispered so nobody would hear it. I knew this would open the flood gates and all bishoujo of the house would try to get in on the act, especially Akeno-san and Xenovia. Which, naturally, I wouldn't mind, but I didn't know how Rias would react if I told everybody about it before she allowed me to.

It was true, though. While Asia was in the shower, Rias undressed me without any words. She just breathed heavily and was determined to do it even if Asia returned before it was done. What a nice explosion of feelings it was! Rias's insides were so hot and wet, my erection slid in without any problems. She did hiss at the pain that came from tearing her hymen, though she waved it off immediately as if it was nothing. She was definitely a very strong Devil. It didn't take me long to finish, which is understandable since it was my first time as well as hers, so her insides were very tight. We cleaned ourselves immediately after so Asia wouldn't see the blood. I do think she noticed something was weird when she entered the room and saw I was naked as well (usually it's just Rias). But she didn't say anything and just lay down next to me, as always.

When Koneko-chan heard that, her face turned instantly from sad to happy. She wanted to undress me right there, but there was a knock at the door. What a relief! Not because I wouldn't want to have sex with her, but if she would actually get pregnant, her body and baby would be in great danger.

''Koneko-chan, are you there?''

It was Asia. Shit! She can't see her naked while I am next to her! The door opened.

''Ise-san! W-what are you…''

I looked down. Koneko-chan was already dressed. She sure dresses quickly. Well, that's one care taken away.

''Asia! W-we were training in the morning and were talking about ways to make her a better fighter.''

Whew! I managed to create a meaningful lie. I'm usually pretty bad at this.

''Oh. I see. Well, breakfast is ready, so come down quickly.''

She said it in an apologetic manner. Asia is so innocent! She'd believe anything I say! I had to go to her and hug her. She was surprised. When I let her go, she looked at me with questioned eyes.

''W-what was that for?''

''Sorry, you're just so cute.''

''Ah! Thank you, Ise-san!''

She was smiling again. That was what I wanted to accomplish. I also wanted her to know I like her even though she had to give her panties to Fafnir, that lecherous dragon who was supposed to protect her! But I can't be mad at him because I know I would be the same!

I looked down as I felt something at my feet. It was Koneko-chan, ready to have breakfast. We went downstairs to eat.