We reappeared in front of a huge Western-style estate. It was so massive you could fit several mansions within. Different parts of the estate seemed to have been built following different styles. The estate was built on a small hill surrounded by a forest.
"Ta Da, the Sitri estate. This is where I grew up and where So-tan lives and where you'll stay most of the time." Serafall announced proudely.
She then grabbed my hand with one of hers and Lily's with the other before excitedly pulling us towards the entrance.
"Let's go, I'll introduce you to So-tan and everyone."
We swiftly reached the entrance, doing our best to keep up with Serafalls enthusiastic pulling. Upon reaching the entrance she let go of our hands before reaching out and aggressively throwing open the main door.
"I'm baackkkk! She shouted, announcing her presence to the estate whilst frightening a maid who had been cleaning off to the side.
"Welcome back, Lady Leviathan." The maid quickly recovered her whits before performing a respectful bow.
She looked like she wanted to ask who Lily and I were but her professionalism stopped her.
"Where are my parents and So-tan?" Serafall asked the maid, bouncing on the balls of her feet in excitement.
"Lord and Lady Sitri are currently resting in the lounge and Young Lady Sona is in the library."
"Oh, my So-tan is so clever already studying to be the best Magical Girl." She began gushing over Sona again and I had to fight the urge to point out that Sona probably wasn't studying Magical Girls.
"You go and get So-tan and bring her to the lounge," she ordered, causing the maid to bow again in acknowledgment, "Kay-chan, Lily-chan, let's go meet my parents whilst we wait to surprise So-tan."
Lily and I were dragged further into the house by Serafall who began navigating towards where her parents were waiting. We finally arrived and yet again she threw the door open as if she had a grudge against it.
"Miracle Levia-tan✮ has arrived!"
"It's good to see you again Sera." An authoritative female voice called out.
I briefly glanced around the room and spotted a few maids before my gaze focused on the couple reclining in the chairs in front of the fireplace. I deduced they were the Lord and Lady of the house.
Lord Sitri seemed to be relatively short for a man but had a powerful build that looked like someone who works out. His eyes were dark brown and he had short black hair. He sat up straight and his posture combined with his dark eyes and sharp face gave him the aura of a soldier.
Lady Sitri similarly had black hair, though hers was far longer and more glossy when compared to Lord Sitri's mat black. Her eyes were violet and she had a flawless face like every female from Highschool DxD. Her body was slim and slightly tall for a woman and she had relatively small breasts giving her an athletic look. She projected a strict aura like that of a strict teacher.
"Oh, who have you brought with you Sera?" Lord Sitri asked, looking up from the documents he had been reading to focus on his daughter.
"I brought my new son Kay-chan and his future queen Lily-chan."
A moment of silence passed whilst Serafall's parents tried to process her words.
"Explain." Lady Sitri sharply demanded, having recovered a fraction of a second quicker than her husband.
"Wait, first the maids need to leave," Serafall said and the couple of maids still in the room hurried out.
"Basically, Rizevim was researching genetics and created these two. Kay-chan was his attempt at creating a super devil whilst Lily-chan was his attempt at creating an inheritor for heaven. Kay-chan managed to escape to Kuoh, bringing Lily-chan with him where they got in contact with Cleria-chan and asked to see me."
"Don't worry, they aren't in danger Juka-chan gave them a checkup before we got here, though Lilly-chan does have a small problem with memories."
"Anyway, Kay-chan, had lots of additional DNA stuffed inside him during Rizevim's experiment, but he was originally made from DNA from me and Juka-chan with a little bit from Rizevim. So now he's my son. Also, he can use the Sitri clan trait and it mutated into ice like mine."
Serafall's parents just stared at her blankly, trying to process the exposition dump shed just dropped on them.
Once again Lady Sitri recovered faster than her husband and began scanning me up and down after a glance at Lily. Her gaze stopped momentarily on my violet eye and again on my hair which looked black at the moment due to the lack of bright lights to show that it was an extremely dark green.
"Come here you two," she beckoned Lily and I forward, her voice having lost much of its authoritative tone.
Her command finally snapped her husband out of his daze and he also gave me a once over before beginning to alternate his glance between me and Serafall.
I walked towards Lady Sitri with Lily following a step behind half hiding herself behind me.
When we were standing before Lady Sitri she stood up from her chair before crouching down and pulling me and Lily into a hug. I stifened for a moment in surprise before relaxing.
"Its ok now, youre safe." She whispered to us in a warm voice containing none of her previous authority.
I fealt Lily relax a bit beside me as she quietly soaked in the warmth of the hug.
"Mom, there's no need to comfort them, they're ok," Serafall said.
"They may be physcially ok but they must have suffered a trauma being experiment subjects. You should know better Sera." Lady Sitri admonished her daughter.
"No no that's not what I meant. Lilly-chan has a problem with her soul so she can't remember anything more than a week ago and Kay-chan was actually a human who reincarnated into Rizevim's experiment with his memories intact. That's how he was able to escape."
Lady Sitri released us from the hug and stood back up, she had a complex expression on her face as she looked at me, which morphed into pity for a moment when she looked at Lily. I stepped back from her before introducing ourselves.
"Nice to meet you Lord and Lady Sitri, my name is Cain and this is Lillian."
I gave a small bow of respect with my introduction and Lily hurriedly emmulated me after she noticed.
"It's nice to meet you Cain, Lillian. My name is Raymond Sitri, Serafalls father, and this is my wife Rebecca Sitri."
Before we could begin a proper conversation after the introductions a knock on the door caught our attention. A moment later and it was opened and in walked a young girl, around Lily's age with violet eyes and black hair that went to the small of her back.
This was Sona Sitri, heir to the Sitri house, one of the new generation pure-blood devils, and student council president of Kuoh Academy in Highschool DxD. She was wearing a blue aristocratic dress but her small frame just made her look cute rather than elegant.
"Sister, you called for me." She said as she entered the room. "Oh, Father, Moth-urgh."
She attempted to greet her parents but was thwarted by her sister. Upon seeing Sona enter the room, Serafall turned, and dashed towards her, before wrapping her up in a hug that forced Sona's face into her sizable bust.
"So-tan!" She exclaimed cheerfully having subdued her sister. "I heard you were studying in the library So-tan, you're going to be the most intelligent Magical Girl ever."
Serafall had started to bounce up and down again, ignoring Sona's arms trying to pull herself out of her sister's hug. The rest of us watched on with amusement for a few seconds before her mother ordered her to let her sister go.
Sona took a few seconds to steady herself and regain her breath after being released from her sister's prison of hugs and boob suffocation techniques.
"Father, Mother." She managed to complete her greeting this time with a small curtsy.
Her focus then turned to me and we had a small staring contest when she met my eyes before her gaze switched over to Lily.
"So-tan, let me introduce to you my new magical girl apprentices Kay-chan and Lily-chan. Serafall complemented her introduction with a flourish and burst of pink sparkles.
"We're not." I immediately denied it.
"Why not?" Sona asked tilting her head curiousely.
"Because it's embarrassing and childish."
"But Onee-chan is a Magical Girl and she's an adult."
"I don't mind if Serafall wants to be a Magical Girl but I don't want to be, besides, I'm a boy."
"Hmph, if you don't want to then don't, I'll be the best Magical Girl and join Onee-chan when I grow up."
"Are you sure about that?" I asked with a smirk appearing on my face.
"Of course!" Sone declared proudly.
My smirk widened into a full-on grin.
Teasing material acquired.
"So-tan, I want you to take Lily-chan with you and give her a tour of the house." Serafall requested.
"Why?"
"'Cause Kay-chan and Lily-chan will be staying here for a while so you should show them around."
"Ok, but only the girl. He doesn't like Magical Girls so I won't show him." Sona said whilst walking up to Lily and dragging her towards the door in much the same manner Serafall dragged us earlier.
Lily looked at me in question and I just nodded at her to go whilst inwardly musing that even the smartest girl from DxD was still childish as a child.
-----
We had moved over to the coffee table and I sat side by side with Serafall whilst Lord and Lady Sitri sat opposite us. A request had been made for a maid to bring a set of tea and snacks that now rested on the table between us.
"So you used to be Human?" Lord Sitri opened the dialogue.
"Yes, I was, an ordinary human suffering from essentially a terminal illness. I fell asleep on my eighteenth birthday and woke up in this body." I gestured to my childish form whilst looking at Serafall wondering how much I should keep quiet.
"Mom, Dad; Kay-chan isn't from this world, he came from another. Juka-chan has some theories but we don't know why this happened." Serafall immediately exposed the secret.
"Interesting, what was your world like." Lord Sitri whilst seemingly interested, immediately accepted what Serafall said. It shows the trust he has in her and Ajuka to have made sure my story was true despite how fantastic it was.
I proceeded to give the same explanation I had given to Serafall and Ajuka about my world. I did leave out the information on components of this world being stories like Highschool DxD, that information was too sensitive both in the knowledge it gave me about a potential future and the fact it may cause existential dread.
Lord and Lady Sitri asked several questions about my world and circumstances during my explanation. They then proceeded to ask how I made contact with Serafall resulting in me explaining my time in Kuoh and getting in contact with Cleria.
"Sera, are you sure it's wise to take him as your son? I know his body was made using your DNA but it's not like you birthed him yourself and his soul is entirely unrelated to you." Lady Sitri asked her daughter after the explanations were finished.
"It's fine, this is the best way to protect him and Kay-chan doesn't mind," she replied easily.
"If he just needed protection we could adopt him instead since he does have Sitri blood and people would question where he came from considering you were never pregnant."
"No that won't work, he's very important so he'll get the best protection as my son since no one will want to anger me. Sorry, I can't tell you what's so important but Juka-chan Kay-chan and I will be meeting with Zechs-chan and Falb-chan later to discuss it."
"Regarding the matter of my pregnancy, well just announce that he's my son without giving details and just let people speculate over if I hid a pregnancy with magic or something. Also, Kay-chan's Sitri clan trait is mutated like mine so people will question whether I adopted him from a branch due to his trait mutating or he truly is my son."
"It also won't be for long anyway, once Kay-chan comes of age he will be able to become the head of the Zagan house since he can use their clan trait."
"Truly?" Lord Sitri looked at me in surprise which wasn't unexpected since the Zagan house was extinct.
"That's right." I nodded in agreement.
"Dad, before you start thinking politics just know that Juka-chan wants to set up an engagement with his niece Latia-chan and that Kay-chan and I accepted." Serafall followed up.
"Why so?" Lady Sitri asked.
"Because Kay-chan also has the Astaroth clan trait and it mutated in a special way so Juka-chan wants him to marry Latia-chan to try and pass it on when they have children."
"Three traits!?" Lord Sitri almost shouted sitting bolt upright, whilst Lady Sitri widened her eyes in astonishment and elegantly covered her mouth with her hand.
"That's right, Kay-chan can use the Astaroth, Sitri, and Zagan traits right now and both the Astaroth and Sitri are mutated. Juka-chan said it was even possible to awaken the traits of other clans Rizevim spliced into his DNA in the future."
"Astonishing." Lord Sitri muttered to himself whilst staring at me as if trying to unravel my secrets.
"And that's not the confidential thing that calls for a meeting of the four Satans?" Lady Sitri asked.
"That's right, although Kay-chan is a super duper genius with clan traits, it's not the reason for the meeting. The secret stuff is the really important thing but Kay-chan would still be an important asset to the devils regardless. That's why Juka-chan, Kay-chan and I agreed that hell be my son."
Serafall was doing an exaggerated proud parent expression whilst both Lord and Lady Sitri were nodding, now understanding why it would be better for me to be adopted by Serafall.
"Oh but, I would like Kay-chan and Lily-chan to live hear though. The Leviathan castle isn't exactly a good place to raise children and whilst Kay-chan might not need it Lily-chan is a genuine child. Plus I want you to teach him magic Mom."
At Serafalls final remark, Lady Sitri's eyes sharpened and her strict aura returned as she gazed at me.