Here is the new chapter. I've been thinking about the class cards for a while and I have finally found the two candidates for Rider and Berserker. The girls who will get class cards will appear this chapter but... I will not reveal which one get which class card and the Servant inside. Enjoy the calm before the storm... and 4th Grail War will start in 2 chapters. This arc will be wrapped up next chapter.

Ohh and I'm changing the title.

Disclaimer: I do not own Fate Grand Order or DxD

Chapter 4: End of Peace

-Hyoudou household-

Being shown kindness by a stranger, that's something Mashu Kyrielight had never experienced. But here she is accepting the help of someone she never knew before, a young boy who had saved her from the fallen angel earlier. Mashu had never seen anyone like him before, so powerful, so strong. The sight of the boy wielding his large sword with one hand and defeating the fallen angel with a single magic shot from his gauntlet left her awed.

She's now in the boy's home showering. She doesn't know why the boy helped him and what he is doing in devil territory but Mashu will accept any help she can get. Plus, the boy does seem trustworthy.

While Mashu is in the shower, Issei is in his room staring at what is currently on his bed, a suitcase and on it an envelope. Issei took the envelope and carefully open it. Inside he found a letter which he began to read through.

'Ise-kun

I have seen your development and I'm impressed. You have done well in mastering both your powers I gave you that class card so you can fend off for yourself, your sacred gear after all will attract unwanted enemies and seeing you show such progress made me happy.

You're still the kind boy I met years ago and for that, I'm proud of you

That's why I will tell you a little bit about who you just helped. Her name is Mashu Kyrielight, she's a test subject of a certain experiment. That experiment was to make an artificial Servant, a human who could use the power of Heroic Spirit. Class cards was originally made for the purpose of summoning a Servant, to serve as their container, the body of a Heroic Spirit summoned from the throne, a vessel if you will. But it has restrictions like how much power it could contain.

This is where the experiment came from. To make a perfect vessel of a Heroic Spirit and use her as a living weapon. A human body can serve as a much better vessel than a mere card even if it is one that could contain a soul, especially if her body and soul can be tuned to specially contain such powerful spirit.

But this is the problem. A Heroic Spirit's soul is much superior to a normal human's no matter how many modifications was made and unlike the safety mechanism put in Servants' class cards that allows for the use of Command Spells and the need of a Master to provide Prana, a full Heroic Spirit will completely obliterate the soul and any pseudo command spell used won't be as effective as the one made for Servants. There are also some more problems but you can find it out yourself.

The Class Card I gave you works in similar way to this experiment though also different. It is more of an extension of the Servant Class Cards rather than you being a vessel. The vessel is the card and the manifestation is through you. The risk of you being overwhelmed by the Spirit is minimalized but as I taught you, Magus walks hand to hand with death. Even if it is not as dangerous, power is never achieved freely.

Your fellow student had been tracking down this Magus who did this experiment but he is a slippery one. Ise-kun, I now leave her in your care. During the raid on the research facility, one of the researcher took pity on her and escaped with her. But recently they were found and the old man who helped her died covering for her. His last words is to take care of Mashu. Can you do it? Your fellow student had eliminated her pursuer and your home territory should be relatively safe. This suitcase contains some change of clothing for her and in the envelope I also have another present, a familiar one. I will personally see you again along with your fellow student.

Black Kaleido'

Issei finished reading the letter and realized who had left him the suitcase and envelope. Shijou Momoka, or also known as the Black Kaleido, the user of the Second True Magic Kaleidoscope that she managed to combine together with her family craft, the Black Door, the Magician who gave him his Class Card.

Something slipped out from the envelope and when Issei look down, he saw a familiar object, a card. This must be the gift Momoka mentioned. Unlike the Saber card he was given years ago, this card shows a warrior holding a shield and it was aptly named Shielder.

Well, it seems he hit the jackpot this time. And this is the first time he heard anything about fellow apprentice. But at least Momoka had not forgotten about him and she did say that she will meet him with his fellow apprentice in the future.

'Can I even be called an apprentice when all I got was a crash course?'

Issei wondered.

[But it's still impressive nonetheless. She taught you the principles of her magecraft and how you can develop by yourself and it is all done in less than a month. She's older than you think you know. You and this new apprentice can't be her first students.]

Ddraig commented.

'Yeah but I'm not so good at using magecraft as I am in swordsmanship. The best I have some spells but they're basic like repairing and things like that.'

[…I have been meaning to say this but have you tried runes?]

'Runes?'

[The spirit in your card, we both know who he is and he is not a mage but since you are, perhaps you could learn runes by yourself?]

Issei thought for a while. Ddraig is right though. He had never tried runes. Plus runes can be used for many things like enchantment and traps, maybe even more if he could think about it. Perhaps due to the spirit he holds, his magecraft is more aligned to Nordic style runes. It's something to think on at least.

But for now, he has a girl to take care of. Issei took a set of clothes from the suitcase and entered the changing room. He plan to leave immediately but just after he left the clothes the door to the bath opens and Mashu exited the bath… fully nude without even a towel covering her.

"Ehh?"

"Hue?"

Issei saw everything from her smooth pale skin still wet after the bath and her sizable chest that looks perky and Issei had to use every bit of willpower he has not to perv on her. She's cute! He knew that when he first saw her but then and now is different! Mustering all his will, Issei managed to speak in a serious tone and bowed to her.

"I leave your clothes here. Pardon the intrusion."

He did not manage to escape as when he raise his head, his cheek was met by Mashu's palm.

"Kyaaaaaaaa!"

-Kuoh, next day-

Issei is a little worried with leaving Mashu in his room. Well, with the bounded field his teacher and old friend made around his house which he can modify, he could immediately know if Mashu got out but the girl is tired after everything she went through. He had to hypnotize his parent (which he doesn't like doing) to accept Mashu until he can do something about her.

Basically, he is now her caretaker. He really can't leave her alone after reading that letter. He might not be the type to go out of his way to find someone in trouble to help but if there's someone in need in front of him then he will damn well help them as much as he can and protecting Mashu is something he can do… after reporting to Sona who is the owner of Supernatural Kuoh.

'…I got the feeling that I'll be saying goodbye to peaceful life soon.'

Issei thought to himself as he look out the window, barely paying attention to class. Luckily, it is physics and as a Magus he is rather well-versed in the subject. Well, at least he understands enough for class. Plus reading has become a habit for him during times when he has nothing to do. He used to banter philosophy with Momoka and he need to read to understand what she's saying sometimes and it just became a habit, especially after she emphasize the need to study to learn magecraft. Who knew that it helps his grades. He might not be very smart but he's in the top fifteen of his year.

'I can never live a normal life, can I? Then again, I wanted it back then, and with Ddraig, it is impossible for me to live a normal life.'

[Still thinking about the impossible partner?]

'It took me two years of constant trouble to realize that normal life is the best. And it took another two years for me to accept that once I stepped into the world of supernatural, I can never leave. But I can dream, can't I?"

Issei replied to Ddraig. The dragon snickered remembering all the troubles they got into. It's all fun and seeing his host gets into trouble and getting out of them while becoming stronger than before is a good sight to see. Ddraig's personal favorite is an attack from three Succubuss in his dream world. Issei is a pervert, but the reason why he's not a big pervert at the level of the Pervert Duo is because of his teacher who admonished him back when he was young and a certain trauma.

Well, after escaping from a powerful female exorcist that almost killed him when they happen to cross path and then three succubus visiting him that night in his dream and almost killed him on the same day by draining him dry, he became very picky with his girls. His top criteria used to be pretty face and huge bust. Now it is mainly 'mild mannered' and 'not trying to kill him'.

Experience really is the best teacher.

'Sometimes I thing if this is the curse of Brunhilde. I may want to be like Siegfried but I don't want his luck with women.'

Issei idly thought as he compares his experience and his favorite hero's own luck with women. Sure the dragon slayer did not meet as many women as he did but women trying to kill or manipulate him reminded him too much of the women in his favorite hero's life.

"Issei-kun. Oi Issei-kun!"

Issei was broken out of his thought when he heard his name being called. He look up from his desk to see two girls staring down at him. One is a girl with short pinkish hair wearing a headband that kept her hair back showing her forehead while the other is a girl with brown hair tied in twintails. Issei recognize them as the bane of the perverted duo though or as he likes to call them, the kendo girls, Katase and Murayama.

"You've been spacing out for a while.

Said Murayama

Katase and Murayama, the favorite victims of Matsuda and Motohama, the perverted duo's peeping. If Issei had to be honest with himself, he also peeked on them changing from time to time though from a much further place through the use of enhanced eyesight, both by magic and boosted gear. He rates them quite highly. Too bad he doesn't have x-ray vision.

"Katase, Murayama? Sorry, I just have something in my mind."

"…well nevermind. Issei-kun, will you come to our kendo practice today?"

Murayama asked him. Issei sometimes come over to the kendo club. It was around last year when Sona tried to have him join a club and to pacify her, he said that he would try a few. Of course, it is unfair for him to join any sports club with his enhanced physical capability so he only tried a few to make a show for her. His last visit was to the kendo club. He purposefully did badly with the other clubs since he's not interested but when he try out the kendo club, he fought an amateur.

It should be simple. Flunk it and get out, that's his plan. But his pride as a swordsman, a Saber, cannot accept it when his opponent is not even in the level of passable so before he realized it, he challenged the whole club to teach them true swordsmanship. Needless to say, even if he's not trying, no high-school kendoka could match a real swordsman with the spirit of a hero and life combat experience and they were all demolished through Issei's pure swordsmanship.

The kendo club began hounding him since then. So he made a deal. He will not join them but he will train them twice every week for one hour. This week, Issei had only trained them for one session so they're asking for his second session. He's like an unofficial member… or unofficial coach. His training did make them improve though.

But unfortunately he can't train them today. He need to speak with Sona and then take care of Mashu and maybe deal with the fallen angels. His schedule is packed.

"Sorry, kaicho asked me a favor and a relative came visiting so I can't coach you guys today."

The girls look disappointed but if kaicho asked for him then they can't do anything about it. Sona was actually the one who proposed the deal and made Issei train them. Soon they could compete in the regional tournament and maybe even win it. It was thanks to Sona that Issei would even train them so they can't say anything if Sona needed him.

Sometimes the two girls wonder what Sona's relationship with Issei is. They're rarely seen together in school but Issei listen to Sona and although it's not obvious, Katase and Murayama had noticed that they're actually quite close with each other. Not romantically but like good friends. They kept it a secret and act rather distant as if they're hiding their friendship which is strange. Then again, Issei is rather mysterious.

He's as tall as a European or a basketball player. You don't see Japanese as tall as him at his age unless maybe if they're basketball player and Issei is not one. He also has unusual hair color. They had met his parents once when they came to his house last year to ask him to train them and his parents are normal Japanese with normal height so it's not genetic. He could've been adopted but they can't really ask that to him.

"I'm sorry is Hyoudou Issei-kun here?"

A voice that most of the girls immediately recognize was heard from the doorway. Issei's attention immediately went to the boy who had called him by name and he almost frowns when he saw Kiba Yuuto. The girls are all squealing and whispering though when they saw Kuoh's prince charming. But Issei knew the truth behind that false smile that is always seen on his face. Kiba Yuuto is a devil. Issei knew the identity of every devil in Kuoh and he doesn't like being called by Kiba because he's not a devil under Sona.

He's a devil under Rias and Issei does not trust her or respect her. Issei has a rule when it comes to friendship in the supernatural world. To be his friend, they have to be open with their intention for him first. It's a must after all those attempted assassination in his travelling days… not to mention manipulations. Sona had been straightforward with him and their relationship is based on mutual respect and benefit and a bond forged through overcoming a dangerous situation together. Rias Gremory on the other hand is someone he has never personally met and based on what Sona told him, she's aiming for him for his sacred gear based on desperation.

Obviously she doesn't respect his choice at all if what Sona said about her plan was true. It makes a whole lot of difference if she comes clean directly with her intention. Sona probably didn't mention a thing about his trust issues with the supernatural either. She's keeping him from Rias in a rather subtle way. She doesn't obstruct Rias but she doesn't help her either. Issei knew her long enough to guess what she'd done. Issei stood up from his seat and went to Kiba. He then whispered to him.

"Tell your master if she wants to call me then do it herself and don't use her servants."

Kiba still kept his smile but inside he's surprised that Issei is aware of what he is and probably who her master is. He had to report to Rias so he left immediately while Issei head back to his seat.

"What was that about?"

Katase asked. Issei never interacted with Kiba before and for him to be asked by name is surprising.

"Just a little thing. Kiba is a good swordsman. I want to fight him sometimes."

Issei made up an excuse for them. It's not entirely a lie though. Kiba's position in Rias' peerage is a knight and Sona did say that Kiba is good with a sword and he's not lying when he said he wants to fight Kiba. It's his pride as a swordsman. He wants to see who is better between them.

Just like every other day when they need to meet, Sona met Issei on the rooftop where they won't be disturbed. Almost nobody came there and it's a place where they can talk in peace after school. At school hour they're just two students from different years who are acquaintances at best. But now after school ends they are friends who knew each other for years.

Issei told her about what happened the day before from his encounter with the female fallen, rejecting her fake confession and luring her somewhere quiet after knowing she's not giving up and all her words followed by the encounter with the male fallen who escaped. He also told her about Mashu and that she's a test subject who escaped but with a little modification. From what he knows, Mashu's matter is related to magecraft, a magic not of this world. That means he must keep it a secret, even from Sona.

"I see, so they're after your sacred gear."

"Yes. That fallen that was waiting outside the school, she was aiming for my sacred gear. But she's either sloppy during her intelligence work or plain stupid but she doesn't know my other identity."

"So you will handle this matter personally then?"

"Well, they're targeting me and the one who escaped recognized me through my sword."

"I'll leave the cleanup to you then. Onto another matter, Rias is not happy that you didn't summon her. She's desperate."

"It's that thing you told me about, right? The engagement with the Phenex."

Sona nodded. Say what you may about her friendship with Rias but after their experience together, Sona's friendship with Issei is much stronger that she told him many things. She also respected Issei's wish to stay hidden. Plus it is also beneficial to her. Neither she nor Rias could've reincarnated him anyway so the next best thing is to be friends with him, the Sekiryuutei who also possess a dragon slayer.

Plus her sister told her to. She doesn't know how but this is her sister they're talking about. She knows many things. She told her to look after Issei. Strangely though, her sister recognized him as the Sekiryuutei but Sirzechs Lucifer is not aware of his presence. Well, that's not her problem though. That means Issei can still have his peaceful life and she's still the only devil he trusts.

"Yes. And she's now wary of you after what you said to Kiba. She's still thinking whether to meet you or not…"

Then Sona stopped talking but Issei noticed she look as if she wanted to say something.

"You want to say something. Just say it, I won't get angry."

"…will you help her?"

Sona asked almost like she's pleading. Even if she respect Issei's wishes, Rias is still her friend, although she's sometimes… alright, rather annoying most of the time, Rias is still her childhood friend. Being asked by Sona, Issei began to think.

"I would love to since you're asking but I don't want to become a devil and I doubt she could reincarnate me anyway."

Sona knew Issei is right. The problem will be handled by having a rating game and only devils can participate in a rating game. Neither she nor Rias has the power to reincarnate Issei, the Sekiryuutei who wields a dragon slayer. Sona had seen him in action and even if he's been slacking off, he's still much stronger than them.

Plus Rias had not won Issei's respect for him to help her for nothing, especially since it should be a personal problem. Issei is rather particular with who he helps when it concerns the supernatural after all. She might hold a sway but it's not enough to make him help Rias out of his own will. It would become a big favor and he doesn't owe her any favor she could use.

"Either way, if she doesn't come and speak to me herself, I won't do anything. You know how this works, right?"

Sona nodded. Either way, if Rias wanted Issei's help, she would need to speak to him herself. That is Issei's policy. And being the Sekiryuutei, Issei is someone that could demand such respect. The name of the Red Dragon Emperor is still well known even today after all.

Katase and Murayama went back home after they finished their club activity. It's still too bad that Issei can't help them today but he does have things to do. Murayama and Katase parted ways halfway home.

It was around 7. They spent more time training than expected and suddenly it's already dark. The only club that would be active around that time would be the Occult Research Club with their club activity usually taking place during the night. Katase walk at a quick pace, wanting to get home faster.

Kuoh is rather empty at night so it's dangerous. Especially since cases of missing person happen from time to time. And then there are the unsolved murder cases. Katase wanted to get home as quickly as she can. When Katase went past the park though, a shadow appeared above her.

That was the last thing Katase remembered.

The very next morning, Katase did not come to school.

And there it is. Issei's stand on the supernatural world is mostly neutral. He's not an 'Ally of Justice' Issei or 'Help them all' Issei so he won't antagonize supernatural creatures who does not attack him but he also won't lend a hand to help if it's too troublesome and not worth his time. We already got enough Seigi no Mikata around here.

Mashu won't get much action yet since her class card is still with Issei and he's thinking about giving it to her or not. Well, not so soon. Issei still have to handle some things so Kouhai can move around in Kuoh safely. And now we have Katase and Murayama entering the stage. I figure I should use them since Asia is not around (for now) and Xenovia is preparing for the 4th Heaven's Feel and Mashu is still pretty much grounded in Issei's house.

Now then, I have future plans ready and I will tell you guys that this story will be closer to Grand Order than Stay Night or Apocrypha after I'm done with the 4th Grail War. Just wait for the things I have planned in mind.

Now for the revs.

matrience: Saber is Siegfried. Which Lancer will be fun to include when I say that? Karna will appear though and he won't be a class card spirit. 2 Extra classes will be summoned Servant.

Dragon Rider 66: I include Mashu after seeing the last chapter. I'm too soft not to include her after seeing her block Goetia's NP. Issei won't be involved in a Grail War, it is Xenovia who will get involved.

Mr Snarker: Issei wants to be hidden for as long as he can so Sona does not say anything to Rias about Issei. Besides, both of them knew that Issei won't be killed by the fallens. He's as strong as a mid to top ranking high-class devil. And here there is also another deviation. Rias might be her childhood friend but Issei and Sona went through a lot together in the past. Plus anything related to Issei is something they discuss together to see who would handle it best. It's a mutual understanding between them. Plus it's better if not many people suspect their close friendship... yet. As for the power level of Shijou Momoka, she's actually that powerful in peak condition. She possess the 2nd True Magic Kaleidoscope and in my Angel's Blessing, I made it that she combine Kaleidoscope with her family magecraft 'Black Door' and made Black Kaleido, a very potent version of Kaleidoscope that can be devastating and very offensive-oriented. Just imagine someone with complete control of dimensions and limitless prana by tapping into the dimensional gap and then able to distort the dimensions itself. She's basically as powerful as Zelretch in his prime or maybe even more so in combat. The current her cannot face either Ddraig or Albion at their prime but if she return to peak condition, she could solo a TYPE and have a high chance of winning.

ENDDRAGON369: Mahou Sensou is only halfway done. I read the LN and it's damn awesome.

Karlos1234ify: Issei will kinda get a harem but not all main girls will be paired with him and some won't even be paired at all.

Mango eater 24: ...Kalifornien what?

piddle: All summoning will be done by someone who got a real training as a Magus, i.e Xenovia.

I'm currently lacking a Caster and an Assassin. The craziest idea I get is Le Fay Pendragon getting the Caster class card with Magi*Mari inside. My craziest idea for Assassin is Emiya Kiritsugu getting his CG EMIYA (Assassin) class card. I'm around 30% sure with my Caster idea but I'll probably scrap the Kiritsugu as Assassin idea.