Dear Sona

Thank you for asking, I am fine, and so does Akeno, Yuuto, and Koneko-chan. Speaking of my chess skills, I can proudly say that I have improved! Akeno now cannot challenge me anymore and I left Yuuto and Koneko in a dash. Although I am still below Onii-sama and Grayfia, as I still can't beat them nor my parents. I can't wait for our inevitable clash of the centuries!

Speaking of which, our clash of the centuries will be upon us sooner than I thought possible. Why? Because after much persuasion, finally Onii-sama, Grayfia, Father, and Mother allow me to live in the human world as well! I will attend Kuoh Academy middle school by the next spring and I hope to see you there. Unfortunately, Yuuto wouldn't be able to join Akeno and I since Kuoh Academy is strictly for girls. Hmm, maybe I can persuade my parents to change Kuoh Academy's policy? That is a thought for later. Anyway, it all thanks to you, Sona. Because you show us that you have improved in the Human World, Mother and Father began considering having me in the Human World also after they had dinner a week ago.

Maybe once I and my Peerage live in the Human World, we can meet up on our free days and have a nice day together with your friends. I also want to taste the fun you experienced with your friends. I really can't wait until I can go to Japan! Okita-san told me all about it when I got the news that you went there. Have you tried the infamous hot spring? Have you seen an actual samurai armor? What about the food? What food do you like the most? The way Okita-san describes the food makes me want to eat them!

So yeah, I think I will end this here. I look forward to your reply. Wait for me in two weeks, okay?

Your dear rival who couldn't wait for the match of the century,
Rias

Sona read the letter she had gotten from the mailbox once more. It seemed that Rias was coming here, and it was sooner than she would expect. She thought for sure that Rias would not be coming here this soon, because, well, Rias was Rias. But she guessed it was because, like her, Rias also wanted freedom. Rias was engaged to the third son of the Phenex Clan, and from what she remembered, Rias really really dislike the decision set by her parents.

She sighed. Not that she did not appreciate Rias or anything, but the way she made everything between them into a contest to be win was tiring her. Rias was her first friend, but before friends, they were first and foremost rivals. It was why she was really attached to the Hyoudou siblings. They were friends, nothing else. But, she thought to herself. She really hoped in the future they would be willing to be more than that.

Still, she was glad that this letter came at the right time. Yesterday, she was fretting over her decision, but this letter confirmed it for her.

She would ask Issei what middle school he was planning on going next year because she would enter it this year.

Not because she disliked Rias who was going to Kuoh Academy, no. If Rias and her went to the same school, no doubt about it, Rias would try to make everything a competition. From club activities to schoolwork, and maybe even popularity?

She would not enjoy her school life if that was the case.

Her lips curled upwards. In the end, she made the decision because she wanted to enjoy her school life. It was not something that she expected to happen to her several months ago when she was still living day by day in the Underworld.

She folded the letter back like it was before and put it inside the envelope. Placing it on her cabinet, she prepared herself for school and then went to breakfast on the Hyoudou's.

"Ise-san. What middle school are you going to enter next year? This time, I ask you because I will choose that middle school as my first pick."

It was breakfast. Issei was still half-sleepy and had just changed his clothes after being woken up by Miyu when someone he did not pay attention to asked that question.

"Minamigawa Middle," Issei answered with a yawn. Last night he pulled all-nighters because there was a rerun of Yuuki Yuuna and he would be damned if he missed it this time. As a result, Issei was still sleepy when he answered that.

Suddenly everyone froze. It forced Issei to rub his eyes and looked around. For some reason, his parents were frozen in shock at something and they looked at him and Sona weirdly.

"What?" Was it something he said? Minamigawa wasn't a bad school. It was also closer to his house than any other school. Why were his parents frozen?

"N-Nothing, Ise. A-Anyway, Sona-san, are you serious about this? I saw your quiz marks, you're definitely better than Ise at school. Why would you enter the same school as him?" It was his father who broke off first. Oh, so it was because Sona wanted to go to the same school as him, huh?

Wait.

"You want to enter the same middle school as me?!"

"You're way too late, Ise," Miyu retorted with a deadpan stare as she finished her breakfast and put the chopsticks beside the bowl. "Thanks for the food."

"I have decided," Sona answered with a nod. "I can try to enter some elite school, but Ise-san wouldn't be there with me next year. I assume that Miyu-san would also enter the same school as Ise-san, so next year we can reunite again in Minamigawa Middle."

Miyu nodded. "It's as you said. I will join whatever Ise's school is."

His mother just sighed. "Well, we can't do anything about that if you already made your decision. But what about your parents, Sona-chan? Do they agree with this?"

Sona blinked.

"I assume that you haven't said anything to your parents, then?"

"No..."

"That's not good, Sona-chan! Your parents need to know your decision!" His mother then clapped her hands together with a smile on her face. "I know! What if we have dinner with them? You can tell them then, Sona-chan!"

To Issei, Sona was a composed twelve years old girl. Even when she was facing Heroic Spirits, she rarely showed a distressed look. There might be a time where she looked distressed, it was when he was poisoned by Assassin and almost died, but it was only a guess because he was unconscious most of the time. He guessed it because she looked relieved when he woke up. But when his mother proposed dinner with the Sitri, Sona looked very distressed.

He wondered why. After all, Sona's parents weren't bad people according to what he observed during breakfast weeks ago. But then again, they were her parents, she would know better than him, so he would withhold judgment.

"Ah," Miyu clicked her finger. "Mother. Dinner is a bit much, don't you think? What about a phone call?"

"Hmm," his mother pouted. "It also works, I think. But dinner is better, isn't it?"

His father chuckled. "You just want to cook lots of things for them, right, dear?"

"Tehee~, you caught me, dear," both laughed at the situation and continued breakfast.

What? Was it something related to adulthood? Why did they laugh? What was funny? He didn't understand? He looked at Miyu who just smiled and gestured to Sona. He turned his attention to the girl one year his senior and found her looked very relieved when they dropped the dinner mention.

Issei continued breakfast in silence. If she didn't want to, then no need to, he thought to himself.

"Sona-san, I couldn't help but notice that you don't want your parents to come here again. I wonder why? I think my impression of them is not bad."

Issei heard Sona sighed as they walked towards the school. "It's nothing, Ise-san."

"With how you looked so panicked, I don't think it's nothing," Issei pointed out.

From her bag, Ruby crawled up and spoke, "Aww, I didn't get to see Little So-tan looked panicked."

"S-Shut it, Ruby!" Sona's flustered was a meal for the mischievous Ruby. Issei wondered how after all these times, Sona still couldn't handle Ruby's mischievous side.

"They're not bad, Ise. But they clearly embarrassed her, don't you remember?" Miyu answered his question. It made sense, actually. Issei nodded to himself accepting Miyu's explanation.

"Yeah... it is basically that, Ise-san," Sona sighed again.

"I thought for sure it was something serious. But if it's that then I'm relieved."

"To me, being embarrassed in front of your family is a serious matter, do you realize?" Sona fixed her glasses answering Issei's statement.

"Anyway, Sona-san, Miyu. It has been a while since we visited Serafall-san's office, hasn't it? What if we visit after school?"

"I do not think Onee-sama would be there, considering her strict schedule. But it would be nice to visit again. I have another letter to send."

"Sure."

The three agreed to visit Sefarall's office after school. For now, though, they still had school to do.

Ajuka Beelzebub was waiting. Serafall had agreed to let him meet with the clearly sentient magical girl stick that she encountered. Now that he had everything explained properly by Serafall (though with great adversity, her mind was very one-tracked when talking about her interest, or her sister) he now understood the situation at least. Now he wanted to examine the stick to see if he could understand the underlying structure of foreign magical items.

As for his progress with the Class Card, he expanded the radar detection range. It might be useless since the threat of the Class Card had been subsided, but it was because it wasn't important anymore that he tinkered with its capabilities. He also added a vibration feature and notification sound for no reason other than making it usable for universal users.

"Hi hi, have you waited long? Sorry, I had to redo several parts of my shoot. Are you ready to meet Ruby?" Serafall suddenly appeared behind him. Again. This time she grabbed his shoulder.

Startled, Ajuka reflexively put the radar inside his jacket. "Yeah. I think I'm ready now. Where are we going again? That town that used to be under Cleria Belial?"

"Yeah. I bought land there and built my office since the town had become a vacuum after that incident. Hmm, since I've got no reports that others are poaching the area, Kuoh is still under the jurisdiction of us Devils officially, right?"

"It should be," Ajuka nodded. "But you should ask Sirzech to be sure. Why?"

"Can I buy the rights for the town? I want to give it to Sona for her to govern. That way, I can give her a surprise birthday gift, and also prevent the others from encroaching to the area."

"You can do that later. I don't precisely know where are we going. So if you can provide the location then we can teleport there."

The two then instantly appeared in a special room inside Serafall's office that she designated as the official teleport landing room. It was around eight P.M., so the office hadn't been closed. Serafall greeted several officers with a big smile and wave while Ajuka walked beside him flatly.

"Leviathan-sama, Sona-sama and her friends had just gone home several hours ago. I didn't know you would visit," the receptionist bowed her head.

"Nah, it's okay," Serafall then grabbed Ajuka's shoulder (again) and introduced him to the receptionist. "This right here is Ajuka Beelzebub, if you don't know already. He's also a VIP. Treat him as if you treat me, 'kay?"

"I don't think I can treat him as if I treat you, Leviathan-sama. He looks... intense while you look relaxed all the time."

"Well, Ajuka-chan's always putting cold front to everything not close to him. He thought it would land him chicks. But he got none exactly because of that!"

Ajuka sighed, "Good grief, Serafall. If you just want to embarrass me, then do it somewhere else. We have a place to go to. Don't you remember?"

"I'm joking, I'm joking. You're no fun." Serafall waved her hand dismissively. She then turned her attention to the receptionist. "Anyway I'm off, keep up the good work, kay? If anything happened about So-tan, write it in the report."

"Yes!"

Ajuka and Serafall exited the office building.

And then something that none of them predicted happened.

Ajuka's jacket was vibrating and making beeping sounds.

"What's that, Ajuka-chan?"

"I made it vibrate and beep whenever it encountered a Class Card," Ajuka answered as he picked the radar out of his jacket. "Huh, that's weird. Serafall, you sure the seven Class Cards have been collected?"

"My So-tan says so, so it must be true!"

Ajuka showed the radar screen to Serafall. "Then why are this device picking two signals coming from two different places? No, wait!"

"One of the signals is moving towards the others! That must be So-tan and her friends! Let's go, Ajuka-chan!"

Both spread their wings and flew up to the stationary signal's location.

When they arrived, they found no one. "Ajuka-chan?"

"It's here. But it seems that we've arrived first." Ajuka gave the radar screen to Serafall. "Look, they're still moving here. But it's strange. This radar detected the Class Card, but I can't see- I see... it's located the Mirror World you were talking about, isn't it, Serafall?"

"Yup, that's correct," Serafall winked. "But without the Kaleidostick, we can't access the Mirror World. I guess we have to wait for them."

Serafall took a seat on the ground leisurely.

"Who says we need to wait for them, Serafall? Did you forget who you're talking to?" Ajuka smiled at Serafall and began thinking of what he knew about a mirror dimension where the strange energy coming from resided.

"Oh right, I forgot you're also a genius! If there's someone who can enter the mirror world without the Kaleidostick's help, it's you!"

That was right. He was, after all, the user of Kankara Formula. Everything that can be calculated, will be calculated by him. And if the result he desired was to locate the mirror world and enter it...

"Found it," Ajuka muttered after thinking back on all the data he had about the Class Card. Slowly, a magic circle bearing the insignia of Astaroth Clan emerged from his hand.

"As expected of Ajuka-chan. Let's enter the Mirror World and surprise So-tan and the others!" Serafall grabbed Ajuka's free hand as they entered the Mirror World.

A/N: I'm an idiot. This chapter has been up on SB for several weeks, but I forgot to update it here.