Mirria, Romonus and Serafall.

(FYI, Akeno was taken into the Gremory household a year and a half after her 10th birthday. So, 6 more months until arrives in Kuoh. Also, Romonus and Rias' birthday is on April 9th.)

As Romonus walked through the Capital city of Lilith, he passed the residents of the city who all looked shaken. He would be too if he saw a giant Black Hole of Power of Destruction appear above their home. 

Though, he did not talk to any of them as he moved east. The 4 Castles of the Satans were separated North, East, West, and South with the castle of his brother being North. Serafall's castle was in the east section of the city so that is how he began to move. 

As he did, he began to think about how he could in any way woo Serafall. He did not want to do it just because his brother told him. He genuinely liked her for a few reasons. It took considerable willpower, self-respect, and loneliness to stay a virgin for almost 600 years.

Even he as a human had slept with over 15 girls and women by age 17. Meanwhile, Serafal was a Devil known for sin and was a virgin for many times his life. She had also never had a boyfriend or girlfriend so he would be that. If she accepted him.

He smiled as he walked through the city which was high tech thanks to Ajuka. Cars and fancy carriages moved through the streets depending on taste. The lights in the city ran on ambient mana and needed no outside input. The Devils who called the Capital home were happy, and living their lives.

Though at the current moment, a lot of the residents were shaken up, they were starting to relax and go back to their regular activities. As he walked he remembered that he had something important to do.

He pulled his phone out of his pocket and called his fiancé. He put it up to his ear as he heard it ring a few times. She quickly picked up his call as she had his ringtone set to something unique.

"Romonus, calling me already?"

She seemed happy to hear from him which made him happy.

"Well, I would be a terrible fiancé to ignore you for a long time. We were engaged just yesterday out of the blue, so I wanted to ask you on a date. We skipped the dating stage to the engaged because of our status, but we can still take out time before our marriage."

Latia thought about it as she was currently messing around in a mech she was assembling. As she was working her phone floated near her so she could talk and simultaneously.

"That sounds nice actually. Tomorrow seems good as I have no training scheduled. We can get to know each other more and I can show you the results of my hobby and you can show me yours. You did say you were getting into alchemy right?"

"Sounds good. I also should get this out of the way, Latia, how would you feel for me to have a harem?"

Latia went silent which made Romonus feel on edge. He even stopped walking as he waited for her answer. Instead of saying how she felt she asked him a question. 

"Romonus, how many women do you think my Father has in his harem?"

'Ajuka's brother is her dad so more than likely very few. If he is anything like his older brother he will be reserved.'

"10?"

Latia instantly lost her composure at his lowball answer. 

"PFFFFF!"

She barely kept a straight face as she broke out laughing.

"No, not even close. He has 80 women in his harem and I have no issue with it. Last week we were informed one of them fell pregnant which is rare."

Romonus did not expect the little brother of Ajuka to be such a man. When his older brother was a straight-up virgin, he had 80 ladies to himself. 

'What a man.'

"Congratulations on the sibling, I am glad with your answer. In that case, when I get a harem, would you manage it for me? My mother manages my Father's harem as he has more than your Father. But you can count that I won't have nearly that many."

Latia felt that was fair as the head wife in the future.

"Sounds good. How many would you think would be an ok number Romonus."

"I don't know, numbers aren't what I am after. I would want women like you, with personality, goals, ambitions, drive, and attractive enough to dazzle the world."

His words made Latia smile. He was good with words at least. Despite being 11, as Devils they were far more mature than human children of similar ages. Anything higher than simple flirting was off the table for another 4 or 5 years though.

"You flirt. See you tomorrow I am almost done with my mech suit."

"Show me a picture when it's done."

"I will do you one better and let you wear it."

"Sounds awesome. I will let you sample some of my elixirs."

They hung up the call which made him smile. Latia was the best and she was going to turn into a hottie in a few short years. He could hardly wait to marry her. Out of how happy he was his wings emerged from his back. He only had two, but they were very different from normal Devil Wings. His wings were larger, more muscular, and covered in runic tattoos he made himself.

Instead of the thin stick wings of Devils, his wings truly looked Demonic. A perk of working under pure Insanity AKA his boss. As for the Runes, they pulsed a deep crimson which he modeled after Bloodthirster runes of hatred. They protected his wings from attack, and magic, increased their strength.

His unique wings were his pride and joy so they deserved the best.

(Image here)

With a powerful flap of his wings, he blasted into the sky as he flew east. He was not the only one flying, but he was certainly the fastest. A few Devils were flying after his student, but a few were brave enough to risk it. Those could barely see him as he was that fast. He left after images and made it across the city in a minute.

When he reached Serafall's castle he retracted his wings and began to spin mid-air. He tucked his legs and landed in front with a heavy impact. He grinned and made a double peace sign. 

"Crushed it."

In front of the castle, two female Devil guards turned to look at him. One of them looked to be about 30 and from the look of it already was used to his antics. She rolled her eyes as she leaned on her greatsword

She had long purple hair in a large braid with a mature voluptuous body. She looked quite a bit like Minamoto No Raikou from Fate in his opinion. 

(Image here)

Her fellow guard looked to be about 16 with short blonde hair with a much slimmer body. Not like any Fate character despite what one would expect. The blonde did not recognize him so she got her spear. 

"HALT! This is-" 

Before she got done with her statement the older guard bonked her on the head. 

"Cut it out, I know the kid. Romonus, back to bother me again?"

He grinned as he hopped over before falling to one knee and pulling out a regular rose. He waved his hand and turned it purple just like her hair. 

"Of course, how could I forget to come to visit the most beautiful lady of the Underworld? You dazzle in the fake sun Mirria. Marry me. I swear to make you the happiest in the world." 

Mirria rolled her eyes as he often came over to flirt with her. Since he was 9 of all things. 

"Ha, ha, ha, sure. Why are you here kid?" 

Romonus placed the rose in her hand and stood back up. She did not throw it away and kept it.

"I am here to see the short queen. Serafall." 

The younger guard covered her mouth to contain her laugh. Mirria stomped on her foot to keep her focused. It caused the new blonde's eyes to begin to water. Her superior did not hold back in her stomp. She could swear her foot was broken.

Mirria cleared her voice as she stepped aside.

"Go on. Serafall doesn't have many friends and I rather you not flirt me to death so go flirt with her instead." 

He placed a hand over his heart.

"Wow, Mirria. That is how low you think of me? And here I thought I was getting past your icy exterior."

She snorted with a pout on her face. 

"I am not icy, you're just not my type. Grow a little older and bigger. Then we will see what happens. Take it or leave it."

That just made him smirk as she was only 2 inches taller than him. 

"Mirria, I am 11. Give me 4 years and I will tower over you. As for muscles, I got that in spades." 

He flexed hard causing the fancy suit he was still wearing from the ball to stretch. Surtr knew how to train a body, but Mirria did not look. Her face got a little red as he was quickly starting to look like Sairaorg did in the anime. 

"Just get going." 

He just smiled in her direction. 

"You know you like it love."

As he walked past Miria he told her about something she was insecure about. A bit of an inside joke among them. As he was behind her he looked at her ass and made a joke she hated. 

"Oh right, your butt is starting to sag."

Her eyes went wide as she spun around to kick him, but he was long gone. 

"YOU ASSHOLE!"

Her ass was perfect and sexy, but she just felt embarrassed about being 875 and not married—nothing to be ashamed about as his Mother was about to turn 934 in 4 months.

As Miria cursed up a storm, the blonde guard looked over at her ass wondering it if was true. It didn't look to be sagging at all. Just then she heard the voice of the Devil. Literally.

"What are you looking at?"

When she looked up Mirria looked red in the face out of shame and anger. She quickly made a lie on the spot. 

"Uhhh, there is a rip in your pants?"

Mirria's big purple eyes seemed about to cry with rage and shame. 

"LIES! For that, you're going to have triple drills.

"NOOOOOO!"

—-

Serafall had a big smile on her face as she messed around with her new computer. It made everything so easy. She just scrolled, read, accepted, or denied with the click of a button. With how fast a devil like her could process information along with the aid of the tech of Ajuka, it freed up so much time.

A job that would take hours of nonstop paperwork could be finished many times faster. She smiled as she remembered when Ajuka brought this over a few hours ago.

He already had them made and was just waiting until they asked. She straight away asked him for one and he delivered. Though she wondered why he seemed distracted.

'Though, he is always distracted.'

Just as she finished this set of papers, the door to her office opened. She looked at who it was and saw Romonus. For the past year, he had been visiting her every week.

"Birthday boy."

She got up from her chair and ran over to hug him. He hugged her back as well, but her strength still exceeded his by a fair bit despite being more of a mage. Despite him being in the Ultimate Class she was at the middle point of the next rank which Romonus was commenly called the Satan Class by some Devils. 

A better term for it would be god rank split between weak gods, middle-class gods, high-class gods, and peak gods. Super Devils, Heavenly Dragons, and beings on that level were hard to classify though. 

"Serafall, I see you got your computer." 

She let go of him with a smile. 

"Yeah, check it out. I can even play games, or video call my Sona. Want to play a game?"

"Sure. When we get done with that, I was wondering if you would go on a date with me?" 

Serafall titled her head. 

"Huh? Me? With you?" 

He nodded with a smile. 

"Sure. I mean, you act more like someone my age than I do so it fits." 

Serafall frowned at the hidden insult. 

"You just called me childish. How rude, now I won't go on a date with you."

He smiled as he pinched her cute cheeks. 

"No, I called you adorable." 

"Quit it." 

She rubbed her cheeks when he let go. 

"Did Zechs put you up to this? That jerk." 

He shook his head. 

"No. He sure asked, but I am doing it for me. I think you are cute and a pretty woman. It can be a simple outing as friends if you want. I got no rush." 

She began to chuckle as Romonus knew what he wanted and he went for it. 

"I will bite, I got my work done thanks to this computer. Where do you have in mind?" 

He knew several places someone like Serafall would enjoy. 

"How about we go to this nice all-you-can-eat restaurant? The food is cheap and to die for. My treat." 

She thought about it carefully before relenting. 

"Fine." 

He grinned in happiness. 

"You won't regret it Serafall. I never say it, but I love saying your name. It's cool."

She smiled as she liked her name too. 

"Thank you. That is so thoughtful of you." 

He chuckled as it seemed he was the older one of the two. The only difference was she had large breasts to go along with her short height. 

"Come on then, before you get more work." 

"Right. Let's go." 

---

When he and Serafall walked out he winked at Mirria who grit her teeth like a feral lioness. 

'DAMN IT! DAMN IT! DAMN IT! THAT LITTLE BRAT WILL PAY FOR PLAYING WITH MY HEART! HE WILL PAY WHEN I GET MY HANDS ON HIM!'

Romonus would soon learn to not tempt older, single, lonely, ladies like Mirria.