Before I start this chapter, I would like to discuss a few things:

This is my first fan fiction.

I got interested in writing it after reading Gate and Overlord Crossover written by oblivon 2991, so you can find some similarities between me and oblivon 2991. Since I have never written Fan Fiction before so oblivon 2991 thanks to him for giving me some ideas. English is not my mother tongue either. So if any grammar is wrong, forgive me. I can use some characters from other anime here. I hope you like the story.

Chapter

The sorcerer kingdom was founded 300 years ago. They conquered the whole continent in five years and a whole new world in 200 years. After occupying the whole world, now they are inventing modern technology. After occupying the whole continent, it was called the Sorcerer Empire. Aniz turned the whole new world into Utopia.

Currently, Albedo and Cocytus, walking along a long porch. They were on an island, next to the Re-Estize Kingdom. The island was a weapons factory, where powerful modern weapons were made for the Sorcerer Empire. It was created 100 years ago; many races were working together in this factory. They go down to the factory via an elevator.

They stood in front of a door, outside of which were two High-Class Golems with advanced heavy magic guns in their hands. Albedo went to the door and wrote the password, and then the door opened automatically.

Many scientists and engineers were working inside.

"Ah! Chief General Cocytus and Prime Minister Albedo!"

Everyone respected them.

"Good, Keep up the work," said Cocytus

"Have you come to see how far our work has come?" The one who said this was a Lycanthrope. He was the chief engineer and scientist of this factory.

"Yes Aniz sama wants to know how much longer it will take you," Albedo said.

"Forgive us, but it will take us another month to make it." He pointed to a thing that had two legs and two arms. Its body was made of the material.

('It looked like Asgard's Destroyer in Marvel movie')

"Very well, keep up the work," said Albedo

"How strong will it be?" Cocytus said

"We are working hard to make it; also it is made of the strongest metal Scarletite. In my opinion, once it is made it will be one of the most powerful weapons in the Sorcerer Empire."

(Strange metals were found on an island far away 60 years ago. These metals were stronger than adamantine. When Ainz found out about it, she realized that these were Prismatic orcs. He sends some of his men there. When they go to the island and observe the metal, they tell Ainz that it was Scarletite metal and that there was a mine here. Ainz goes there immediately. Ainz instructs Demurage to engrave Golems there. Ainz called a meeting of all the great scientists of the Sorcerer Empire. He told them to build satellites that would allow them to search for different things. Scientists worked tirelessly for 50 years to build such a satellite. They then sent it into space as per Ainz orders and it was successful. With the creation of the satellite, adventurers were no longer needed, so they joined the military. It's been 10 years but they haven't found a Prismatic orc mine yet. But they have found many mines of other metals.)

Albedo and Cocytus left that room.

"Do you know where Beelzebub is now?" Said Albedo.

"Beelzebub Sama seems to have gone to the Headquarters of the Modern Force to meet Ragnarok Sama," Cocytas said.

Modern Army Headquarters

The Modern Army Headquarters was originally in The Argland council state.

(About 300 years ago there was a big battle between Floor Guardian and True Dragon Lord in which True Dragon Lord lost. As a result, the Argland council state became part of the Sorcerer Kingdom. Ainz made powerful Undead's with the bodies of the deceased True Dragon Lords. And the other defeated True Dragon Lords swearing allegiance to Ainz)

After conquering the whole new world, Ainz also focused on military and modernization. He wanted to replace every soldier with a Magic gun. But if all the soldiers were given guns all of a sudden, it would be difficult for the soldiers to adapt and this would have a huge impact on the economy. So Ainz created a force that would have modern weapons. This force is called Modern Force. There are about 200000 soldiers in this force, most of them were Human. Another reason behind the creation of specific forces of Ainz is; Among the Humanoid, Demi-Human, and Heteromorphic Race, Humanoid was the weakest. On many battlefields, more human soldiers were killed or wounded. The human was strong 300 years ago, mainly because other races were barbaric. But Ainz chained all the races, making Demi-Human and Heteromorphic more powerful. Some scientists at the Sorcerer Empire have somehow discovered a vaccine that will make the cells of the human body more developed. But even then they were not as strong as some Demi-Human and Heteromorphic soldiers. Because Demi-Human and Heteromorphic babies were also vaccinated after birth. So Ainz created a specific force that would have modern weapons such as guns, tanks, robots, etc. This does not mean that only the Modern force will have advanced weapons, other forces also had a touch of modernization. Ainz wanted to gradually modernize all the armies.

Currently, two people are sitting in a room and playing chess.

"I lost this time! "

"We've been playing for the last three hours, now we have to go to work on our own."

"Yes see you later"

The capital of the Holy Kingdom is Hoburns.

Ainz old-world environment was much polluted, so he paid special attention to the new world environment. He took many steps to ensure that the environment was not polluted. For example, if one tree was cut down, three trees would be planted. Vehicles are powered by water, magic, or electricity. Electricity is generated by solar panels, windmills, and turbines. There were many other uses for this renewable electricity. He also made laws to prevent the population from growing, for example, each Couple could have no more than three children. It turned the whole new world into a utopia. Today was a beautiful day in the capital of the Holy Kingdom. It was a utopian ideal city. In the middle of the city was the huge statue of Aniz.

(Six months after the expulsion of Jaldabaoth from the Holy Kingdom, they became the Vassal of the Sorcerer Kingdom and from then on all the nations began to live together in this place. After becoming economically prosperous, the citizens of the Holy Kingdom erected a statue of Ainz in the center of the capital in honor of Ainz, which was 240 meters high. It took 35 years to build the statue, and it had a budget of 900 million gold coins, all of which were donated by the people of the Holy Kingdom.)

At present, the common people were doing their daily work. Then suddenly a strange structure appeared in front of the statue of Ainz owal gown in the middle of the capital, it was 40 meters tall and 20 meters wide.

The people of the Holy Kingdom stood still for a moment, but they did not understand where it came from. They stood and looked at it strangely.

Then some soldiers on guard came there.

Ainz conquered the entire new world 100 years ago, so they had no enemies. As a result, the army was given the task of maintaining peace in the city.

"Where did it come from?"

"I don't know!"

"We should take the public away and let the mayor know!"

They took the public away from it. Then everyone heard screams from the infinite darkness inside the structure. From there, animals like many armored weavers flew.

Strangely armored men grazed on them

"Who are these?"

"Are they trying to attack us?"

"What are you saying? The Sorcerer Empire conquered the whole world 100 years ago"

"Where are they from?"

"We need to wait and see"

Sometime later, the sound of numerous metal boots moving towards the light was heard from the Kale tunnel. The first to emerge from the darkness were men dressed in their respective horses. They all wore the same armor as the previous Wyvern Raiders but a little different.

They realized it must be an attack but they didn't understand who they were and where they came from. They tried to remember if somewhere they had read about them. After the Sorcerer King, Ainz Ooal Gown had established his Empire and conquered the known world; he introduced many reforms in his Empire. For example, free primary education for everyone, every adult citizen receives military training for three years, hospitals where real

Doctors and healers worked, and a fully functioning sewer system.

Of course, the churches of the Six Great Gods had protested against this furiously, saying this was their job and that the Sorcerer King will destroy humanity one day.

But as time passed, their voice became quieter and quieter thanks to the pressure from the masses, until the church supporters became completely silent and some people founded the religion of the Forty-One. It worshiped the Forty-One Supreme Beings instead of the Six Great Gods. Of course, the religion that worshiped the Six Gods still existed. But their influence had become greatly diminished with the conquest of the Slane Theocracy and the death of its six head priests.

The attacking army carried a flag with a strange symbol that anyone had never seen. Its basic color was claret. With a golden cross and with four dragon wings between the four sides of the cross. Behind the symbol, there was a red dragon. All of this was framed by an ornate golden outline. No one has ever seen such a flag before. A soldier talks to the mayor through a massage item and informs him about the situation. The rest of the troops took a defensive stance. Ordinary people get ready for the things they found around them that they could use as weapons and those who didn't get anything get ready to fight empty-handed. Some ordinary people take minors to safer places.

"In the name of the Saderan Empire and the Emperor Molt Sol Augustus! Give up barbarians!" yelled the leader of the invading forces.

No one understood what they said because of the foreign language that they spoke.

A soldier stepped forward and said

"In the name of the Sorcerer Empire! State your business here!" Behind him, the people were in full readiness. They prepared to charge.

"What do we do, Legate Octavian us?" asked the enemy commander's right-hand man in the unknown language that resembled Latin.

The Saderan Commander grinned. "Barbarians. They don't even speak Saderan. Massacre everyone who resists. Capture as many as you can and transport them to the other side. They will make good slaves. For the glory of the Empire."

His right hand saluted. "As you wish, Legate! For the glory of the Empire!"

His right hand signaled to the first cohort that had already arrived through the Gate and settled in neat rows. The soldiers held rectangular shields and their armor resembled that of a Roman soldier's light armor. The Wyvern Riders had already started their little attack.

A Beast man soldier approached the attackers. He attacked the invading forces with his hammer and disbanded them, and then the other Soldiers and civilians began to attack.

After a while, many arrows were fired at the Wyvern corps in the sky. The arrows hit the Wyvern's head and wings, knocking them all down. The arrows were fired from the archer tower of the capital. Then a gate opened, from which 200 Death Warriors, 300 Death Knight, and 300 Soul Eater came out. The death knight was riding on Soul Eater. After they came out, they started attacking the invading forces. Then another gate opened and 5,000 regular soldiers and 2,000 magic casters came out. The magic casters came out and began to heal the wounded citizens. The massacre was being carried out by the invading forces Death Warriors, Death Knight, and Soul Eaters.

Sorcerer Empire's capital is Nazarik.

At first, the capital was at E-Rantel. But after occupying the whole continent, the forests around the Great Tomb of Nazarik were cut down to create a planned ideal capital. The capital was round in shape. In the middle of the capital was the Great tomb of Nazarik. Outside the capital, parts of the Great Forest of Tomb remain.

Ainz was sitting in his office reading a report, which was sent from a satellite station.

"Hm, they've found two new Mithril mines. Ah, I don't think any more Prismatic orcs mines can be found."

Then there was a knock on the door of Ainz office.

"Come in"

Then the door opened and Albedo entered the room.

"Ainz sama, a strange structure appeared in the middle of Hoburns, the capital of the Holy Kingdom, and the invading forces came out of it and started attacking."

"I know about it. The mental connection with Death Warrior, Death Knight, and Soul Eater has informed me about this. Have we been able to capture any of the attackers?"

"Yes, we have captured 146 attackers. Neuronist is currently interrogating them."

"Very well, call Demurage and my sons."

"Yes, (massage)"

Shortly afterward, three men entered Aniz office. The first one looked like a 22-year-old man. He had two horns on his head, which were like Albedo. She had thick black hair. His eyes were two yellows that also looked like Albedo. He was about 7 feet tall. He was Beelzebub Owal Gown, son of Ainz and Albedo. He is the Crown Prince of the Empire. He is the male version of Albedo. He was adorned with dark-purple full-body armor, which was made especially for him. It was made of Scarletite metal. In his armor is the Emblem of Warrior Takemikazuchi. She was also adorned with fresh red capes, with the symbol of the Sorcerer Empire in the middle.

The second one looked like 18 years old. He had thick white hair. His eyes are red like Ainz . He is also about 7 feet tall. His ears were longer than a normal human but shorter than the normal elf. He is the son of Aniz and Zesshi Zetsumei Ragnarok owal gown. He is the 3rd prince of the empire. He is half-Elf and half Overlord. He wore black boots, black pants, and a long white military coat. He has two badges on his shoulders. Among the badges were a king's crown, three gold stars, and Takemikazuchi's Emblem. The emblem of Warrior Takemikazuchi was used as the flag of the army. In his belt was the symbol of the Sorcerer Empire.

In his coat is written, S.E.M.F (Sorcerer Empire Modern Forces). He is the head of S.E.M.F.

The third was Demurage, the defense chief of the Sorcerer Empire.

The three of them entered the room and bowed before Ainz.

"You must have read the report on the Holy Kingdom."

"Yes Dad, I read about them. The people resisted them until help came. No civilians were killed, but about 12,000 were injured."

"Dad, I wonder who they are. I've seen their flag; I've never seen a flag like this before. I've seen them in a book of armor Ashurbanipal, their armor is like the armor of a Roman soldier."

"Yeah Ragnarok, you're right. I think they came from another world. Sure, you can go to another world through that weird gate. Beelzebub, you go to the other side of the gate and lead the Expedition Force."

"But Dad, I've never conducted an Expedition before. Also, they attacked us , we should attack them."

"Yes it is true, but we do not know anything special about them. We must first gather complete information about them. And it is foolish to attack without knowing complete information about someone. Ragnarok, you will help Beelzebub to manage the expedition. "

"Yes Dad"

"What's my punishment? I didn't do my job properly."

"Demurage, it was not your fault. If you still want to be punished, your punishment is to lock up the area around the structure so that no one can use teleportation or gate spells. You will also strengthen the defenses around the structure to prevent such attacks. "

"I will not disappoint you again"