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The night before Ryuuto and his wives teleported to Hermione's world, the latter was heading towards the headmaster office to ask him if Ryuuto, Rias and Ning Er could come visit Hogwarts.
After Hermione and professor Mcgonagall, who was accompanying her there, arrived at the gargoyle statues outside the headmaster office, the professor said the password and the wall behind the gargoyle opened revealing a staircase.
"Lemon drops."
Sighing at the headmaster naming sense, Minerva and Hermione went up the stairs and the professor knocked on the door, soon after both heard Dumbledore's voice.
"Come in."
Hearing the permission to enter, Mcgonagall opened the doors and headed inside followed by Hermione.
"Ah Minerva! Miss Granger, what can I do for you?"
Looking towards the headmaster Hermione took a step forward and told him the reason why she was there.
"Headmaster, tomorrow three of the wizards I told you about would like to come visit, is that okay?"
Seeing that Hermione was even better than usual at magic, the professors reported this to the headmaster, since considering everything that had happened in the last three years this could be another dangerous event, and Dumbledore decided to ask Hermione directly.
As she was summoned to the headstart office to answer that question, Hermione told him the same thing she told Ron and Harry, that she got to know some foreign wizards and witched that helped her.
"You mean those foreign wizards that helped you?..." Seeing Hermione nod, the headmaster continued his answer. " I don't see a reason to refute. After all there's already the students from Durmstrang and Beuxbatons coming here, three more people wouldn't make much of a difference."
"Thank you Headmaster."
After thanking Dumbledore, Hermione left and, through the chat, told Ryuuto and Rias that the Headmaster knew of their visit.
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While Ryuuto, Rias and Ning Er where visiting some of the magical communities in the world, they came across a really big white dragon with two horns on its head and blue lightning dancing around its body while the interior of its mouth, visible since it was currently roaring at the sky, was an electric blue color.
(A/N Image here.)
Remembering how Ning Er had reached the silver rank demon spiritualist and was currently at a 3 star level, Ryuuto thought of making that dragon her demon spirit.
Letting the ship stay in stationary flight, Ryuuto got outside of it and decided to actually use the Divine Dividing Balance Breaker for the first time.
"VANISHING DRAGON! BALANCE BREAKER: SCALE MAIL!"
After Albion's voice was heard by any animals nearby, which also included the giant white dragon, and Ryuuto's wives, a new armor appeared on Ryuuto, this was mostly white with golden details and white-blue flames behind his back.
(A/N Image here.)
As Ryuuto had finished looking at his armor and was currently going towards the dragon, he saw it assuming a submission position with its head on the ground.
"What can I do for you, my lord?"
Hearing the thunderous voice of the Dragon, Ryuuto was actually surprised since he didn't think that it would be able to talk.
"I didn't think you could talk. Do you have a name and why are you calling me 'my lord'?"
"This one is named Levina, the white one, my mother said it means 'Lightning Thunderbolt' my lord. I call you my lord since I can sense a dragon's soul much stronger than me inside you."
"I understand Levina. My name is Ryuuto Azusagawa, I've come to you since one of my wives can make contracts with beasts and fuse with them, would you be willing to become what she calls demon spirit?"
"If it's for someone of the calibre of my lord's wife, I'm more than willing to become her demon spirit."
"Then I'm going to get her, wait here for a moment."
Saying that, Ryuuto went back towards the Xiphos and told Ning Er of his conversation with the dragon.
"Hey Ning Er, I've found this dragon that is willing to become your demon spirit, come with me so you can meet her."
"Really Dear? What do you think of her?"
"Well, her name is Levina and it seems she can sense Albion's soul in me, other than that and being able to talk she seems pretty in tune with lightning, just like you."
During their usual training, Ryuuto saw how Ning Er was usually pretty good at manipulating lightning and her attacks were particularly strong when she used lightning.
Nodding to Ryuuto, Ning Er followed after him and they soon reached Levina's location.
"So you're the dragon Dear talked about, right?"
"Yes, my lady."
"Do you want to become my demon spirit?"
"It would be my honor if my strength could be put on use by someone like you my lady."
"Then you just need to relax and soon enough this will be over."
Seeing Levina nod, Ning Er started absorbing Levina inside her soul realm and soon enough the giant white dragon disappeared from in front of them.
Looking around, Levina found herself in a light blue space that was slowly expanding, gazing in a certain direction she saw what looked like a spatial opening and, driven by curiosity, Levina ended up crossing it.
Once on the other side, she saw a much bigger white dragon looking at her.
"Mmh, So you're the one my host's wife chose. She made a good choice, I can see you have potential."
"Thank you for your praise, but who exactly are you?"
"My name is Albion, one of the two heavenly dragons, I'm the soul you sensed inside Ryuuto, the one you call 'my lord'."
While Levina and Albion kept chatting, Ning Er was actually fusing with Levina to see what form she would get.
Surprisingly, what formed on her was a black armor with really big wings and a sword on her back.
(A/N Image here.)
"That's strange, I thought I would only get white wings and maybe a tail, instead I got a full armor and even a sword, but why is it mostly black?"
"I don't know Ning Er, now let's go back, Rias is waiting for us and it's also almost time for us to reach Hogwarts."
Seeing Ning Er nod and undoing the fusion, Ryuuto flew back to the Xiphos followed by Ning Er.
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As the entirety of Hogwarts was outside the castle main entrance waiting for the two schools to arrive, they saw a flying carriage pulled by winged horses getting near them.
Once it landed the students coming from Beuxbatons and their headmaster, a half giant woman, exited it.
"Madame Maxime, it's so nice to see you, how was your trip here?"
"Headmaster Dumbledore, nice to see you too, out trip here was wonderful. I see we're the first to arrive."
While the two headmasters were talking with each other, the students there noticed how from the lake nearby bubbles were emerging, shortly after a ship emerged from it and from it the students and the headmaster, a black haired man, from Durmstrang arrived at Hogwarts.
"Headmaster Karkaroff, how nice to see you. I hope you're trip here was without any problems."
"Don't worry headmaster, or trip was perfectly smooth. Since we're all here, how about we get inside?"
"Not exactly, we're still missing a group of people, they come from a foreign school."
Just as Dumbledore finished saying that, everyone there heard a strange rumor coming from a long distance away that was rapidly getting louder.
Soon after that, all the students, the Hogwarts professors and the three headmasters, saw a strange vehicle flying towards them. Seeing that, Madame Maxime and Igor Karkaroff, the two headmasters from Beuxbatons and Durmstrang, took out their wands and prepared to attack but where stopped by Dumbledore.
"Don't worry my friends, those should be the people I just told you about."
Hearing that they put back their wands but where still on guard.
Soon after, from the ship three people jumped down and landed a little away from the big group of students.
As the three newcomers got closer everyone could see one young man with two young women hugging his arms, once they got close enough they introduced themselves to the headmaster.
"My name is Ryuuto Azusagawa, this on my left is my wife Rias Gremory and the one on my left is my other wife Xiao Ning Er. Nice to meet you Headmaster Dumbledore, Hermione told a lot of things about you and your school."
"Nice to meet you too, as you know, I'm Albus Dumbledore, Headmaster of Hogwarts and this two near me are the Headmaster from the other schools, Headmaster Igor Karkaroff and Madame Olympe Maxime."
Nodding to Igor and kissing the hand of Madame Maxime, Ryuuto chatted some more with Dumbledore while Rias and Ning Er introduced themselves to the other two headmasters and the professors there.
"I want to thank you Headmaster Dumbledore, I'm sure this must have bothered you."
"Don't worry young man, if it's for one of my students something like this isn't much."
"I still have to thank you, you see, me and my wives were searching for a nice place for our honeymoon and this seems like the perfect place."
"I'm glad to hear you like this old castle. How about we go inside? I'm sure you all are hungry."
Nodding to Dumbledore, Ryuuto, Rias Ning Er and everyone else followed him inside and went towards the great hall to eat dinner.