Short date and start of Academy

A couple can be seen walking on one of streets in Kuoh. A very handsome man with purple hair is holding hand of a teenage girl with pale golden hair. If you look closely you would see tint of blush on face of a girl.

-Salter, why are you so embarrassed? We're holding hands because I'm afraid of being lost, what's wrong?

-Hmph, yeah, it is knight duty to protect king, so don't misunderstand.

-Let's forget about it for a while, where do you want to go?

Seeing stars in her eyes MC nodded

-Food, got it.

After that they spent a lot of time visiting food stalls. Watching how King of Knights behaves, a gentle smile crept on his face. She was very cute, yes?

How did their relationship begin? After he trained the original Artoria and after the fall of Britain, he was rewarded for completing the training quest. The reward was summoning crystal. MC summoned Salter. At first, their relationship was quite strained, but improved later, because their mindset is almost the same.

As they walked, they saw a tall man appearing to be in his twenties with an average build, black hair, golden bangs and black goatee.

"Hoooo, Azazel, what is he doing? Hehehe, I'm gonna scare him a little"

Using silent footstep, MC closed distance between them. Salter could only sigh at antics On her master.

-WHAT'S UP AZAZEL, ARE YOU GOING TO CLUB TO HOOK UP SOME GIRLS? YOU, OLD PERVERT.

-AHHHHHHHH, FU ... Oh, it's only you, Scáthach. What do you mean old pervert? You're not young too.

-Shut it. I'm 17 for eternity. So, what are you doing?

Leaning close to him fallen angel whispered

-I'm going to meet Odin and we are going to oppai club for research purposes.

-My dear Azazel, you do not understand that thicc thighs save lives. Your oppai is only truth, nothing more.

-Tch, thighs man.

-Look at thighs of Salter, if it is not perfection, than what?

While they had heated discussion, Salter was beat red due to embarrassment. "How he can say such things with straight face?" she though.

-Well, I do not care about what you are doing, if it's legal. But if you lay your hands on my girls ... Hehehe, I recently got new lance, and I need test subject.

Legendary Lancer summoned Rhongomyniad, which scared shit out of Azazel, because of holy power it emanate.

-Wait, isn't it Rhongomyniad? How did you get it?

-Secret ~ Badass, isn't it?

-Tch, stingy

-I gonna go, I still have a date with my cute King of Kinghts. See ya

After that, they continued their date, buying a huge amount of food. But the most important destination cat's café. The strongest pair in DxD melted away in the presence of cute fluffy kittens. After they came to their senses, they decided to keep this event a secret.

[Back at Chaldea]

While MC was playing Apex with Eresh, blue screen appeared in front of him.

[New quest: Help Anos Voldigoad during war, and then in Academy]

[Warning: you'll spend more than 2000 years in this world]

"Hehe, world with the most badass Demon King and whole bunch of Chinese Masters, it would be great. But the question is whom I'm going to bring with me? I think this time for Saltria and, maybe, Sakura? Yeah, great idea, during our quest she'll become mature and, also, gain some experience"

Looking for small purple head, he found her playing with doggos

-Sakura, I want to talk with you about serious matter.

-What is it, Onii-chan?

-Recently, I got a new quest, and I want you to go with me, but I want to warn you, we'll spend more than two thousand years there. So, think about it, this matter is serious.

"Two thousand years with Onii-chan, hehehe" the only though Sakura had in her head.

"What's up with this dangerous glint in her eyes? She won't become a yandere like in heavens feel, will she? "

-I decided, I will go with you

-Sigh, are you sure? We're not going on picnic.

-Absolutely

"Let's just pretend that I didn't see her yandere tendencies"

-We're leaving tomorrow, spend some time preparing, because there would be war, but after that we will have a lot of free time.

[Demon King castle Deruzogedo]

Listening to dialog between Anos and Kanon, MC held back his bloodlust, because he knew about plan of Demon King and he hates himself, because he couldn't make his friend, Anos, change his mind. Even if he knew that Anos will be reborn two thousand years later...

"Well, it's his wish, I can't do anything" sighed Grand Lancer

How are they become friends? During war MC joined mazoku side alongside with Salter. Considering their strength pair of Lancer and Saber become known very fast. When Anos met both of them he was amazed. After short spar Demon King recognized Scáthach as equal. Both made a lof of legends. The destruction of countries, reducing the spirits forest to ash and even killing the gods. This was the man feared as the demon king - Anos Voldigoad. MC - as a greatest lancer in history - nobody could win against him, even gods. Of course, being battle junky, he participated in almost all skirmishes. It was rumored that Scáthach's power was on pair with Demon King.

After Anos sacrificed himself, the main character's lust for blood simply exploded. He had never been so angry in his life. The surrounding space began to break, even the creation God Militeia took a few steps back, because the bloodlust was simply suffocating.

Not noticing that his heterochromatic eyes became rainbow-colored, he looked at the "hero".

With voice devoid of any emotions the man who was feared amongst all races said:

-The only reason why you and all humans are still alive is that Anos wished for this war to end. If you think that you could stop me, then you are greatly mistaken. Even your seven origins will not help you after I torture you till you beg for mercy. Remember my words hero Kanon - your faith in humanity is useless, the people of this world will never stop until they remain the last living race. I will personally destroy everyone if someone tries to start the war again.

-But, ...

Before the hero could finish the sentence, the tip of a spear was a millimeter from his eye.

-I do not care about what you think. I'm looking forward when you will be betrayed by humans that you protect. See ya, I'm in bad mood, don't talk shit here. Get the fuck outta here.

[More than two thousand years later]

[Day of exam in Demon King Academy]

[Anos pov]

[After meeting with Misha]

-Ha? Taking the admission test with your parents. When did the demon king academy become a playground for children?

"Hmmm. Who's this fellow? "

- ...… .Oi, is that?

-Aah… .this is bad ... They've caught the arrogant gaze of Zepes. I wonder if that guy will keep all his limbs ...….?

"Now that reminds me about my old friend, he would say something like <This shithead talking like young Chinese master> or <Oi, Anos, let's trash him, so that he will learn his place> in this situation. Hmm, now I think about it, he must be somewhere here"

[3 POV]

After showing Zepes his place, Anos went with Misha to exam.

What he didn't notice - a group of people consisting of a young purple-haired guy with a blinffold over his eyes, and two beautiful girls who were intently watching at this perfomance.

-Dat was my boi Anos, did you see it, Salter?

-Yeah, yeah, Sakura ignore him, we have exam.

-Oi, what do you mean "ignore him", this was awesome, right Sakura?

-Please, stop fighting, Onii-sama, I know that you're happy to see him, but can you be a little more serious? And, Salter, don't be so mean.

-Hmhp

Both harrumped, but went to exam hall.

-Please line up by the letter that was printed on your invitation card. (owl)

Looking at their invitation they saw different letters printed on it.

-Well, we're lucky that we are in different section, don't forget not to kill other participants. Wait, let me rephrase, don't forget to revive them later. Salter, don't use Excalibur, otherwise you'll fry all of them. Ask Sakura for weapon, she can create it with <The Denial of Nothingness>

After, Scáthach went into the waiting room. Listening to rules from owl

-Blah, blah, blah, shut up, I want to watch other participants. Heh, it is Anos time. Haa, Zepes is really stupid. Man, your "great" magic was blown away with simple sigh, and you are still cocky. Now I'm wondering if having noble blood reduces the number of chromosome?

-Participant Scáthach, it's your turn.

-All weapons are allowed, I'm correct?

-Yes, no limitations

"Great, I don't want to touch them, what if their stupidity is contagious?"

Making a new lance using nanites, MC went into a round stadium with high walls.

Looking at his opponent, only one though went trough head of Grand Lancer: "Weak, stupidly weak"

-Since when have disabled people been admitted to exams in ...

<BOOM>

After smashing his opponent with his new lance he said

- Since when "great noble" demons cannot block a simple blow?

The fate of the remaining opponents was the same, they were all imprinted on the wall.

[Later, magic aptitude test room]

-So, how it was?

-Boring, I just blown them all with my pure strength. (Salter)

-Umm ...

When Sakura started avoiding eye contact, gaze of Scáthach became piercing.

-I accidentally killed one.

Sakura said, in a very low voice

-Why?

- He said that purple hair color is disgusting, but Oni-sama has the same color as mine, it is unforgivable, unforgivable, unforgivable, unforgivable

Your guess is correct, during their stay, Sakura became full-fledged yandere. The protagonist was practically raped, but managed to avoid the worst with the help of his faithful knight, but this story for another time.

An owl flew in while they were talking.

-We will now be performing the magic power measurement. Please line up before the magic crystals. After you are done please move to the next room for the aptitude test.

When it was the hero's group's turn, touching the crystal the result was:

[0]

As the owl speaks a noise rings out and the crystal breaks into pieces.

-The measurements have finished. Please proceed to the aptitude tests.

-Let's go, I want to end this as quickly as possible. (MC)

-Please stand in the center of the magic formation to start the aptitude test.

A large number of magic formations are drawn on the floor with students standing in them taking the test.

-In this aptitude test, we measure your thoughts against the cruelty of the demon king. In addition, we perform a simple test on your knowledge of the demon king. We are reading your thoughts so cheating will not be permitted.

MC POV

"Hmmmm, let's answer with real facts.

[Then let's begin. It is said to be wrong to call the name of the demon king but please state the demon kings name.]

"Anos Voldigoad"

[In the age of myth, the founder destroyed Deiruheido using Flame Prison Annihilation Cannon <Geo Grays>. As a result, all of Deiruheido was burnt to the ground and many mazoku lives were lost. Why did he perform such an act of violence? What were the founder's feelings at the time?]

"Pfffffff, I still remember this, he fell asleep"

[In the age of myth, the founder had a friend, whom he considered to be equal. He was also regarded as the strongest spearman of all time. What was his name?]

"Hoooo, unexpected, his name was Scáthach, it's me. I wonder if they changed my name in history books. I think not. I am different from Anos, he wanted to achieve peace by extinguishing the flames of war, however, I have always believed that the best solution is the complete destruction of the human race of this world, they remind me of devils on DxD. Kanon considered me much more dangerous than Anos, because he did not take part in every battle, unlike me. I think I've been listed everywhere as the most dangerous creature on the planet. "

[Moving on. Next question-]

30 minutes later the aptitude test is finished and I left the room.

3 POV

On their way back, the group noticed Anos talking to Misha. Smiling at Demon King, who was having fun talking, they went to their café. Café "Chaldea" was opened many years ago, at first it was just hobby (mainly because Salter didn't liked food of this world), but, later, he started working as waiter due to boredom. During these two thousand years, their cafe became very popular, as they were constantly moving around the world, and the quality of the food was outrageous.

"Well, last two thousand years was enjoyable and boring at same time. We traveled whole world after wall expired. Sakura's training, surprisingly, did not take that long, she absorbed information like a sponge. Unfortunately, there weren't many adventures, we just enjoyed the time together, and the cafe was opened so that there was something to do when there was a lot of free time"

-What are you thinking about, Onii-sama?

- Sorry Sakura. I just remembered one case when you left somewhere without us. You were so scared thinking we abandoned you that idea of using magic to search for it never crossed you mind.

-Mou, don't tease me, please.

- I remember that. When the master saw that you were not around, he overreacted and he himself forgot about magic and turned the whole city over in order to find you.

- Hey Salter, you promised to keep this a secret. Oh, I just remembered an interesting story. That was about five hundred years ago, when we were at a picnic. While we were fishing, you fell asleep and some bird stole all our food. And then you chased it with Excalibur. On that day, another mountain ceased to exist in this world. But, the funny thing is that you destroyed all the stolen food along with the poor bird. After that you were sulking for whole day, because we didn't help you.

So, discussing funny stories that happened to them, the heroes arrived at the entrance to the cafe.

After changing into uniform, Sakura went to cook, while Scáthach and Salter began to prepare the tables for the guests.

Surprisingly, the first guests were Misha, Anos and his parents.

-Look, Anos-chan, as I said, this place is great. (Izabella - mother)

-Yes, Anos, your mom and I are regular visitors of this cafe (Gusta - father)

-Mother, father, please don't get so excited...

Sitting at a distant table, they began to choose dishes.

At this time, the main character hung the <Closed> sign on the front door so that no one would disturb them.

While they were browsing the menu, a young man with purple hair and a blindfold approached them.

- Have you decided on the order, dear guests?

-Ummm… everything looks so delicious, i want a cheese hamburger with soda, please (Izabella)

- I will order food for real men - steak and chips. Oh and a glass of beer, please (Gusta)

- I want ...

Before he could say, the waiter interrupted Anos

-Hmmm, let me guess, you want a mushroom gratin, right, Anos Voldigoad?

-Who are you? How do you know about it? Only several people knew it.

Dramatically falling to his knees, the main character said

-Anos, you know, it hurts when your best friend forgets about you. Ops, I forget that I'm suppressing my aura, tehe

With boink to his head, Grand Lancer removed blindfold. After seeing these unique eyes something clicked in minds of Anos and Misha. It is really hard not to recognize this person, no one in whole history had the same eyes.

Twitching his lips Anos recalled a fact that was known only to those with whom MC was close- if this is not a battle, this guy will do whatever he wants, because he has several screws in his head.

- Scáthach ...

Misha was shocked, this guy – a legendary spear wilder, who was on pair with Demon King?

-Umu, that's me. So, your order is mushroom gratin, a cheese hamburger with soda, steak and chips with glass of beer. What about you, young lady?

-… Same as Anos…

-Got it. Your meal is on the house.

-Misha, don't worry, Scáthach is harmless, except that he is very strange, always gets into problems and has a bad character, he is a great guy.

Hearing these words, the main character felt like several arrows pierced his heart. Smirking evilly he looked at Anos. Seeing his old friend's expression, the Demon King felt approaching disaster.

-Anos, you got for himself such a nice girlfriend. You should introduce her.

"Arnos-chan has ...… Arnos-chan has ...…"

Then in a surprised voice, Izabella yells out

-My Arnos-chan has already got a bride!!

-Anos! Good job. As expected. You're a man now (Gusta)

"1-1 my dear Demon King" thought mc

I'm gonna reveal important events using Flashback-no-jutsu

This quest will be slow paced. So, I can show better interaction between different characters.

No girls from this world. I really like Anos, so there wouldn't be any stealing.

And, yes, I hate Kanon, his mindset is the same as Emiya to my point of view

Do you want Sakura to have dark mode?

Yes

or

No