AN: I forgot to mention this in the last chapter, the next three stories aren't going to take place in Harry Potter, one you already know and the other two are similar to a Lostbelt.

Ch 15 Introductions

Hermione stretches in her chair, yawning after reading another book of ancient civilizations. "Tired, Hermione?" Lucien asked the young woman.

"Oh, Lord Lucien. I didn't notice you coming in." Hermione greeted the young Lord of the Barthomeloi.

Lucien chuckles, handing her a cup of water. "Well, I was roaming around the Border since there's really nothing to do here for the moment." He smiles.

"Thank you," Hermione took the cup. "True, I almost read the entire collection for the past month. Is it always a waiting game before we take action?"

"That's what my mother says," Lucien looks around the library. " Chaldea is a research organization, waiting is partially apart of the job description." He jokes hearing the bushy-haired girl giggles.

"True on that, Ritsuka is great with keeping the Vice Commander and Sion inform about his current situation." Hermione sips her drink. "And he's good at speaking with Mashu and their son daily."

Lucien nodded, seeing why his mother wants him to study under him. suddenly the alarms went off, flashing red in the library and the halls. "What's going on?" Hermione stood up from her chair.

"I don't know, let's find out." Lucien and Hermione rush out from the library towards the Command Center.

-ZZZ- ALL PERSONAL, WE ARE DEPARTING FROM OUR CURRENT LOCATION TO A NEW ONE, PLEASE PREPARE FOR A DIMENSIONAL SHIFT. -ZZZ-

"A dimensional shift? Now?" Hermione questions, reaching the doors.

"Considering that we can't exactly leave by rising above the river," Lucien commented. "It's understandable that we're shifting." The doors slide open, letting the two inside the Command Center.

"Ms. Granger, Lord Barthomeloi, glad that you two can make it." Holmes greeted the young adults.

"Ruler, what's going on?" Hermione asked Holmes.

"Ms. Granger, I'm sure you heard on the PA already." Goldolf sat on the Commander's chair. "Fujimaru has ordered the Storm Border to move to the Great Lake near Hogwarts."

"Why's that?" Lucien asked the Musik Lord.

"From what the map that Voyager sent; it seems a Mana pool the sizes of the Black Lake is under the school." Amelia examines the map. "It's an ideal place to set up a proper supply chain to master." She explains.

Ginny turns her seat, looking at the Foreigner. "But why can't we use the one that Ritsuka found when he set foot on this world?" she asked the navigator.

"Simply to put it, during the summoning of new Servants plus contact with us and Chaldea. That used up the Mana pool." Sion explains to the witch. "Assuming that this world is like our own, the coordinates to Hogwarts is the same." The Alchemist looks at Amelia who punched in the coordinates.

"Already placed in, Ms. Sokaris." The pilot announced.

Sion nodded and looked at her Servant. "Captain, your call."

"Right, master." Nemo held out his arms. "Prepare for a Dimensional Shift!"

"HAI!" The Nemo Marines cheered.

The Storm Border began to glow, vanishing from under the river.

King's Cross Station, September 1st, 1995, 7: 00 AM

"Come on, come on! We're already late!" Molly rushes the children at King's Cross Station.

The children pushed their trolleys with their luggage, heading to platform nine and three quarters. "Geez Mum, we're only ten minutes late. The train won't leave after an hour." Fred said to his mother.

"I wouldn't be talking Fred, remember when both you and George were fifty minutes late?" Molly scolded her son, "It was sear luck that your older brothers convince the conductor that you two were missing."

George sighs, remembering that moment like it was yesterday. "Ah, old memories." He smiles.

"Tch, I didn't even get my hair done this morning." Ginny whine, combing through her long red hair. "It's all straight and not curly like how I like it."

Ron rolled his eyes as he continues pushing his cart. "(I swear, sisters.)" he whispers to himself.

"Tell me about it." Jamie sighs, sharing the same emotions as Ron with Jamie and Abigail.

"It's a shame that Ritsuka and the others didn't come with us." Hermione sighs, hoping to spend time with him.

"He was called over by Dumbledore for a meeting," Arthur explains to the group. "He went along with James, Abigail, and Lily since they are one of the staff of the school."

Jane didn't say a word, she just ponders in her mind what the school year is going to be like. Especially when her 'brother' is going to be her professor in the new class.

The group arrives at the column where the signs Nine and Ten were. "Alright, Fred, George, you are first." She motions her twin sons to head in.

"Shall we Forge?" Fred smirks at his twins.

"We shall, Gred." The twins ran straight into the column, soon everyone else did too.

On the other side, they froze seeing Waver and a blonde girl with a silver maid with her. "OI! You all are late!" Waver noticed the family and the children.

"Lord El-Melloi II, what are you doing here?" Arthur questions the former Lord of the Clocktower. "I thought you went along with Ritsuka and the others?"

Waver sighs, "Dumbledore deems it necessary that we take attendance before the train leaves." He informs the Ministry worker. "He took note that during a certain year, three students took matters on their own hands and stole an enchanted car to get to the school." He eyed Ron and Jamie, looking away from his intense gaze.

"I see, but it already late for that," Molly commented. "Why now did he issue this instead of the years after the incident?" she remembers Harry, Jamie, and Ron stealing the car during their Second Year and Jamie's First Year.

"Due to the limited staff available he cannot make that happen," Waver explains. "He requested that master send three of his Servants to oversee the train."

"Servant? You're telling me that you're Harry's Servant?" Ginny asked the Snape look alike. She smiles seeing the nod as a confirmation to her question.

"Yes, and I'm also your instructor or his assistants are unavailable." Waver senses a yandere aura around this world's Ginny. "So don't get any ideas that we would follow you." he glares at her.

Ginny rolled her eyes, "Whatever, Harry will soon realize that I'm his one and only love." She smiles proudly, oblivious to the dead eye stares from her family and 'friends'.

"Dream on," Reines crosses her arms ignoring the glares from her.

"Who are you? I didn't see you with the other Servants of Ritsuka." Hermione points out the Pseudo-Servant before them.

Ron looked at the blonde girl in some fancy get up. "Mione's right, we didn't see you around."

"Oh, me." Reines piqued. "My apologies, I am Reines El-Melloi Archisorte; you may call me Rider if you prefer." She inclines her head while holding her skirt. She motions to Trimmau, "This here is Trimmau, my maid."

Trimmau gave a peace sign to them. "Hello there." She greeted them. Reines groans that the golem still retains some of the teachings that Flat taught her.

Arthur and Hermione froze upon seeing the golem. "Dear Merlin, is this what a robot that the Muggles describe in their text?" Arthur examines the El-Melloi's craftsmanship. "I can believe I'm seeing one in person; this is a historical event in Wizard kind!"

Hermione gather around the golem, touching the metallic skin. "I have never seen a robot like this, what is it made of? How did you get the shape of a woman just right? How is it working when magic interferes with machines?" Hermione is hyperventilating, excited to meet a feat.

"Trimmau is my family's creation, she's made of mercury." Reines got a deJa'Vu moment when she met Hermione for the first time. She saw her about to ask the same question as did the other Hermione asked. "And no, I can't share the creation of Trimmau. It's a family secret."

Gryffindor's bookworm looked shocked, distraught was more like it. "B-B-B-But the Ministry states that all Magical knowledge must be shared with the public! You can't just keep valuable information from us," Hermione tries to reason with the Rider. "Think of the potential of your creation helping the community." She begs her.

Reines sighs, "I'm sorry but the secret will stay a secret, no matter what you say, Hermione." She drew the line there.

"B-"

"Ms. Granger, try to understand that our 'family' takes pride in our work." Waver explains to the bookworm, "If the information gets out then people will take the credit as they're own. The El-Mellois won't take that chance."

Hermione was about to counteract the argument when Arthur steps in. "We understand, Lord El-Melloi II. We apologize for the inconvenience we caused you and your sister." He inclines his head to the Servants.

"But-"

"(Mione, don't. It's their work, you can just ask their secrets like that.)" Ron whispers in Hermione's ears. He understands why Reines would refuse to tell Hermione the secrets behind Trimmau. "(Think about it, how do you like it if someone asked your work to copy? That's the exact thing that you asked.)"

Hermione froze, realizing what she has done. "I'm so sorry!" She inclines her head to Reines. "I should've realized that it was wrong of me to ask you such a question." She apologies to her.

Reines smiles, waving it off. "It's fine, I have a friend who is just like you when she first saw Trimmau." She compares her to the Hermione she knows. "She understands quickly as you did, and now we're friends."

"I-I hope we're going to be friends too, Reines." Hermione hoped for her to accept her friendship.

Reines smiles at her, "We already are,-"

"Merlin, can we just skip the small talk." Ginny went around them, entering the passenger car.

Waver shook his head, disliking her attitude. But she has a point, "She's right, everyone get inside the train car. We're already a few minutes late on schedule." The Caster enters the car with Reines and Trimmau behind them.

Molly took her sons, kissing them on their foreheads." Alright, you three be good, have fun in Ritsuka's class, and please don't get into trouble." She eyed her twin sons, knowing their mischievous ways.

"Don't worry Mum,"

"We won't."

"Pinky swear," They both smile at their mother. Molly sighs, having a feeling they already have something planned when they arrived.

Jamie tug on Jane's sleeve, she looks at him. "Ready to go Jane?" Jamie asked his older sister.

"Y-Yeah, let's get on." They all went on board the train, parents wave their children goodbye as the train left the station.

Hogwarts, September 1st, 1995, 5: 00 PM

A loud thunder sound exploded in the sky, spooking Minerva McGonagall. "Is it going to rain?" she questioned looking at the window.

"I don't think so." Filius Flitwick, the music Professor answered. "Professor Trelawney didn't predict any rain, plus there aren't any clouds in the sky, Professor McGonagall." He walked down the hall to Dumbledore's office.

"I hope you're right; I do hate for the children getting wet on their first day back," McGonagall commented, following the half-goblin down the hallway. She sighs, knowing what to expect this year. "It's going to be strange this year,"

Flitwick nodded, "Yes, it's going to be different without Harry Potter in class." He commented, missing the Boy-Who-Lived in his music class. "He was a bright student when it comes to music."

"I do miss him too, Filius. Even if his grades were average, he's still a thrill to have around." McGonagall sighs, arriving at the Headmaster's office entrance. She turns around, seeing James and Lily arrive at the same time as they did.

"Oh, Lily, James, we're sorry for your lost." McGonagall gave the Potter parents her condolences. "I can only imagine the grief your family is facing." She had a sincere look on her face.

Flitwick nodded, giving his condolences to the family. "As do I, please accept my condolences to your family." He inclines his head to the Potters.

Lily smiles softly at her former instructors. "Thank you both for that, we appreciate it," she said to them.

"Yes, thank you, Professors." James inclines his head to his former instructor.

"If there's anything that we can do, just ask." McGonagall offers her support to the family.

"Much appreciate it, Professor." Lily thanked the Transfiguration Professor. "Now, shall we enter the Headmaster's office? I'm sure he's waiting for us." She informs the old woman.

McGonagall nodded before they enter the Headmaster's office. Upon entering the office, the entire staff of Hogwarts gathered in his office except for the Ministry has sent. "Thank you all for coming," Dumbledore stood from his seat.

"We're always free for you Headmaster," McGonagall commented. "What is it you need to call us?" she asked the old man.

"As you noticed, I have added a new course in this term this year on the roster," Dumbledore observes his staff looking at the class roster, seeing the new subject.

Flitwick looks back at Dumbledore, confused about the meaning of the name. "Lore? What is it; if you don't mind?" the half-goblin asked the Headmaster.

"The Lore class is a new subject that will be an extracurricular class, I have met someone of great interest for the students to learn from," Dumbledore explains to his staff.

"What's the goal of the class Headmaster?" Professor Binns, the ghost Professor for the History of Magic subject asked.

Dumbledore looks over to the ghost professor. "It's a lot like your class, Professor Binns. But different." He explains to the History Professor.

Binns looked offended that this class was like his own. "How so? Headmaster, my class is been around since the beginning of this school." The ghost argues, "Having a similar class will cause confusion with the topic I'm working on." He states out his complaint about this new course.

"(Topic? It's the same topic until the end of the year.)" James thought, disliking the class.

"Now, Professor Binns this class is no relation to the course you have." Dumbledore defended Ritsuka's class. " This class focus on the Mythology, Historical, Folklore figures of another dimension."

The staff gasps, "Another dimension? Headmaster, you can't be serious," Binns argued. "That's the most ridiculous thing I ever heard, who was the one that offered this course?' he demanded.

"Headmaster," Lily looked at the old Wizard, worried about how they'll react to Ritsuka.

Dumbledore noticed Lily's concern, he sighs and looks at everyone. "Before I tell you who that person is, just a warning to you all." He announced.

"What do you mean, Headmaster?" Madame Hooch asked him.

"The person who'll be teaching the Lore class is teaching his world's history," Dumbledore informs them. "He is the doppelganger of a certain person we know, however there's a great difference between the two." He said before McGonagall steps up.

"Headmaster who is this person you speak of?" McGonagall asked him, curious about who he is.

Dumbledore looked at the door, unlocking it with his wand. "You all may come in," the doors opened letting Hinako and Da Vinci in.

They all saw the strangely dressed people walking inside, "Who are they?" A Professor asked seeing more coming in.

Koyanskaya, Bedivere, Gawain, and Ashyia. "Goodness me!" McGonagall gasps seeing Ashyia's sadistic smile, and Koyanskaya's unbuttoned shirt and short skirt.

"What are they wearing?"

"So indecent,"

"They have the audacity to show up to the Headmaster's office like that?"

They were disgusted yet in awe of the people who just entered, then the next person was a shock to all the staff. "I-I-IMPOSSIBLE!" Flitwick exclaims at the sight of the young man.

McGonagall was shaking, a whole bunch of emotions rushed into her being. "H-H-H-"

"Harry Potter!" Sybill Trelawney exclaims, laying eyes on the young Magus before them.

McGonagall looks at Dumbledore for an answer on how he is even alive. "Albus, how is this possible!?" She has widened eyes filled with grief and joy. "Did you delve into Dark Magic to resurrect him!?" she demands an answer from the Headmaster.

"I have seen things before." Flitwick gasps, still comprehending the Bow-Who-Lived is standing here alive and well. "T-This, shouldn't be possible! It goes against the laws of nature!"

"Law of nature, Ha!" Ashyia laughs, "If anything mother nature doesn't have the power to that." The Alter Ego smiles.

"Alter Ego," Ritsuka sighs, seeing his fellow co-workers flinched from his voice.

"Minerva, this isn't Harry Potter we know," Dumbledore explains to the Deputy Headmistress of Hogwarts. "He's from another dimension, I can't go into any details on why he's here. But I can tell you all that he and I came to an agreement to contribute one another."

McGonagall and the rest of the Professors stare at Dumbledore then at the Potters. To their surprise, they're relatively calm about the situation. The Deputy Headmistress walks up to Harry's doppelganger, with a calm expression. "I-It's a pleasure to meet you, Harry. I'm Minerva M-McGonagall, the Transfiguration Professor and Deputy Headmistress of Hogwarts." she greeted the Magus, nervous to speak to him.

Ritsuka smiles, inclining his head to her. "It's a pleasure to meet you Professor too," He raises his head. "I'm Ritsuka Fujimaru, Harry Potter's doppelganger."

"Ritsuka Fujimaru? Why are you going by a foreign name?" A Professor questions the strange foreign name.

Ritsuka looks at the Professor, "In my world, the Potters abandon me with my Aunt. At Age sixteen I left her home and join the Chaldea Security Organization shortly becoming its director." He informs them.

"The what?" the Professors look at each other, never hearing the organization before.

"It's a Muggle organization that protects the Muggle World," Lily interjects.

Flitwick looked at the people around Ritsuka. "Who are the people around you?" The Music Professor asked the young man. "I can sense powerful magic within them, yet they're not Wizards or Witches."

Ritsuka looks at his Servants. "These are my Servants, my familiars."

"Impossible, no mere familiars have a human form!" Binns floats forward, "It's unheard of!"

"It's true, we are master's familiars," Gawain informs the staff.

"We take orders only from him," Bedivere added.

They all look at Dumbledore, nodding confirming it is true. "It is true, they are familiars. I was shocked as well to find out about this." The Headmaster responds. "I have asked Mr. Fujimaru to lend some of his Servants to assist with the security for the school. Ms. Akuta and Ms. Caster have offered their services as instructors."

Da Vinci steps forward with a smile. "I'm looking forward to working with you all,"

"I'm going to be Ritsuka's assistant in the Lore class," Hinako said to them. "I'll take over whenever Ritsuka is unavailable."

Flitwick nodded, "Well, let me the first one to welcome you all to Hogwarts." he looks at each Servant, "Everyone of you,"

"Thank you, Professor Flitwick." Ritsuka thanked the small Professor. He looks at the other Professors who seems to be uncomfortable to even speak to him. 'I guess they all have a close connection to Harry,' he thought.

'It seems so master,' Bedivere commented. 'It's understandable that they are uncomfortable with you,

"Well now that you are all acquainted, Professor McGonagall, Professor Potter would you mind taking Mr.- sorry, Professor Fujimaru to his classroom?" Dumbledore looked at his two instructors before him.

Lily nodded, walking to her 'son'. "Ritsuka follows us, we have a spare classroom already set up for you." She informs the Magus.

"Thank you, Professor." Ritsuka thanked his 'mother', he turns to Koyanskaya nod before following her out of the office. The Servants followed their master leaving the Alter Ego behind.

McGonagall shifted her legs, following the young man who looks like Harry. The boy who she'd consider as her grandson. "Professor McGonagall? Are you coming?" Lily asked her fellow instructor.

The old lady blinks, shaking off the shock. "R-Right, I'm coming." She followed the group to the classroom that Ritsuka is going to be teaching in.

Dumbledore noticed Koyanskaya, stand there patiently for something. "Is there anything I could help you with, Ms. Koyanskaya?" The old man asked the Servant.

Everyone eyed the pinked haired fox, holding a rectangular object in her hands. "Oh, I'm just waiting for everyone to leave, master wants me to inform you what his agenda for his class." She gave a fake smile.

Gardens of Eden, September 1st, 1995, Time Unknown

(Fate/Grand Order Cosmos in the Lostbelt OST Oath Of Humanity)

Rider of Heaven sat on her throne in the palace of Eden, she senses a presence that was fated to come. "Humanity's final master." She smirks. The Rider stood from her throne, heading to inform her master.

"Caster, Avenger, to my side." Rider calls upon her allies, Avenger of the Gallows, and a boy with straight down white hair in a white shirt, his eyes were blue as the sky, light blue shorts with black shoes and white kneecap leggings. He wore a darker shade of blue like his shirt coat over his shirt.

"Tch, what is it Rider? Can't you see I was having fun tormenting the prisoners?" Avenger gave a disappointed glare at the 'Matron' of the Anomaly. "Especially with Yukimura's doppelganger." She licks her lips, thinking of the sex she just did with him.

Caster stares back at the Avenger, "Is sex really what you think of Avenger?" The Servant asked.

Avenger petted his head, "Awe, don't be like that Caster. You have plenty of toys yourself." She smirks sadistically. "Didn't you have your creatures torture the female Death Eaters down in the cells?"

The three walk past the entrance to the dungeon, hearing the horrified screams of the woman in the cells.

"Speak to yourself, you actually that man lock in cuffs and chains in your room for entertainment." Caster retorted back. He then looks at Rider, listening in to the conversation. 'What about you, Rider? Do you still have that snake locked up in a birdcage or something?"

"Yes I do, he is so fun to play with." Rider giggles before arriving at a door. "It's a shame that human we call our master doesn't realize what our goal is." They walk inside the room with a roundtable in the middle.

Four holograms of Servants appeared around the table, then their master appeared too. "Master," they greeted him.

"Rider why have you call this meeting?" The master demanded of his Servant. "Me and Ruler have some important things to attend to." Rider could feel the intense glare from behind his mask.

"Apologies master, it seems that Caster of Versailles failed to subdue the Chaldean master." Rider explains to her master the situation. "Ritsuka Fujimaru is here, in my Anomaly." She glares at Ruler and Avenger of the Eternal Empire.

"WHAT!" The master looks at the duo Servants, enraged that Caster of Versailles failed to deliver. "WHAT HAS THAT USELESS SERVANT BEEN DOING WHILE SHE WAS AT THE WANDERING SEA!? SHE SHOULD'VE GONE AFTER HIM!"

"Master, traveling through the dimensional plane is difficult without a proper guide." Ruler explains to his master. "The Servants of the Eternal Empire is preparing our plan for the Paris in our Anomaly. We already reformat the needed Servants sent by the Counter Force, but needs constant maintenance."

"Oh my God, you used Hephaestus's ability to generate automatons on the Servants sent by the world." Rider chuckles, thinking she was dark. "They're cyborgs now…Christ, talk about dark."

The Servants looked in horror that Avenger and Ruler would go that far with their plan. Except for Alter Ego. "Our master wants results, I happened to find the logical solution for that problem." Ruler replied, with no care for those who he hurts.

"Avenger, what is your word on Ruler's…plan." Saber of Melromarc eyed the Servant across from him.

Avenger looked at the Saber. "I have no qualms with Ruler's plan, our master here agrees with it." She replied coldly. "This will succeed master; we give you our word." The woman looks at the masked man.

"I'm holding on you on your word, Avenger." Their master looked at the duo Servant. "Be sure to make results." Avenger and Ruler nodded, understanding what they must do.

"And punish that Caster with you, because of her my plans now has a threat." The master orders his two Servants.

"We won't fail, master." Ruler proclaims.

Rider coughs, gaining her master's attention. "Master, should I send Avenger of the Gallows and Eden's army to deal with Ritsuka Fujimaru?" she asked, ready to do that.

"No, spy on Ritsuka Fujimaru. Find out what his plan is," The master orders the Rider. "With that information, we can use that to our advantage." He smiles insanely.

Rider nodded, inclining her head. "Yes, master." With that the meeting was over, each Servant and the master signs off.

"So, what? Who you're going to send?" Caster of Eden asked the 'Matron' of Eden.

Avenger steps forward, taking out a black seed. "I can always send my vines to spy on them, they can be undetected by their instruments." She offers to the Rider.

Rider nodded. "Very well, go and do that Avenger." She allows the Servant to do so. "I'll inform our dear master the plan we came up with." They all left the room, heading to do their respected task.

AN: How do you like it? Please leave a comment or a review.