Zongman: The strongest demon king from Juwang Academy

Zongman: Jun Mo Xiao, the strongest demon king from Ju Wang Academy

Roy traveled to the world of Demon High School and became Gurefia's younger brother, the sole heir of the Luke Fergus family.

And obtained the devil chess piece system, from then on Roy walked on the road of conquering the dependents across the world and becoming the strongest devil king.

Saeko Busushima: I swear on the honor of the Busushima family, I am willing to be Roy's knight.

Butterfly Shinobi: As long as I can save my sister, I am willing to be Roy's soldier.

Estes: If you want me to be your queen, then beat me!

The main world is the world of Demon High School.

Across the World: Apocalypse of the Academy——Blade of Demon Slayer——Pokemon——Slashing the Crimson Eye——Miss Kobayashi's Dragon Maid——God Eater—to be continued

Chapter 1 My Sister Is Gurefia

The underworld, the legendary place where demons, fallen angels and many elves and ghosts live.

Inside a splendid old castle.

"Drink...ha..."

A teenager is trying to swing a sword in the yard.

"Nine thousand nine hundred and ninety-seven... nine thousand nine hundred and ninety-eight... nine thousand nine hundred and ninety-nine... ten thousand!"

"Huh...huh..."

The boy lowered the long sword in his hand, wiped the sweat from his forehead and kept panting.

The 16-year-old boy has short silver-white hair and a pair of bright black eyes.

Although that handsome face was still a little immature, there was a trace of determination and calmness that did not belong to this age.

"Roy can't be lazy! Today I have to swing my sword a hundred thousand times!"

A cold and serious voice sounded behind him.

"Understood, sister!"

Roy nodded helplessly.

"Really, it's not cute at all to be so serious every time you practice."

Roy muttered a few words and continued to swing his sword.

Roy is a time traveler, how to time travel has no way to study, his current name is 'Roy Lukefugus'.

When he first came to this world, he was a little skeptical.

But a few years after coming to this world, Roy has fully confirmed it.

The world that brought him back to life is the world of the Devil's High School.

Demons, fallen angels, goblins, angels... even dragons and gods.

These existences that should have existed in fantasy are real in this world.

And the person who spoke just now was his sister, named Gurefia Lukefugus (Greyfia Lukefugus).

It is the family of the demon king Lucifer in the original book, known as the strongest queen among all the family members of the underworld, nicknamed the silver-haired queen of annihilation.

But now she is no longer the Queen of the Demon Lord Lucifer.

Gurefia was born outside the preface, the famous Lucifergus family in the demon family, and the family has served the old demon king Lucifer's confidant for generations.

During the demon reformation, she fought against the Reformist faction as a member of the old Demon King's faction, and finally competed with the Demon Lord Seraph for the seat of the strongest female demon.

Although the battle failed, his strength was already at the level of the Demon King.

This also made the Lukefugus family a powerful demon family in the underworld, and broke away from the Lucifer family.

However, the entire Lukefugus family, also because of the war with the reformists, has only two people left.

And Roy is the last male of the Lukefugus clan.

Originally, Roy thought that he was born in a famous demon family and had such a powerful sister.

Then I will definitely be able to have a strong strength, hang and beat all the devil kings, and take all the girls I like as family members.

In this regard, Lesa Phoenix can be said to be a role model for all demons.

However, the ideal is beautiful, but the reality is cruel.

As the last heir of the Lukefugus family, Roy does not have a strong cultivation talent.

Although he has worked hard to cultivate for more than ten years, he is only the strength of a lower-level demon now.

Looking at Rias and Cang Na who are the same age, they have already reached the strength of superior demons.

With such a talent, even he himself wanted to give up cultivation, but his sister, Gurefiya, did not give up on him.

Still staring at him sternly every day to complete his practice.

And it was precisely because of this that the reputation of Roy's waste materials spread in the underworld.

But he just doesn't care.

"Ninety-nine thousand and nine hundred and ninety-seven... ninety-nine thousand and nine hundred and ninety-eight... ninety-nine thousand and nine hundred and ninety-nine... one hundred thousand!"

"Huh...huh..."

"Finally completed the sword swing training!"

Roy bent over and supported his knees with trembling hands, the sweat dripped down his face, and he didn't have time to wipe it off.

However, this is just the beginning of the training day.

"Roy, let's take a break first! Start learning magic later!"

Seeing Roy working so hard, Gurefia finally smiled.

"Huh... got it, sister!"

Hearing that he could take a break, Roy finally sat on the ground tired.

After resting for a while, it's time to learn magic.

However, with his useless talent, he has only learned a few basic magics over the years.

Such as teleportation array, erasing memory, magic bullet, healing magic and the most important contract magic and so on.

If you want to sign a contract with your family members or familiars, you must use contract magic.

Of course, to sign a family member, you need devil chess pieces.

Devil's High School is a very wonderful world, although humans account for the majority of this world.

But only the devil and the gods are the masters of this world.

Of course, there is also Orpheus, who is called the infinite dragon god, and the true red dragon god emperor, which is also called the great red dragon.

These are existences that stand on the ceiling of this world.

In such a wonderful world, Roy is naturally unwilling to be ordinary. It is absolutely impossible for him to watch the girl he likes fall into the arms of others.

Since you are not willing to be ordinary, then let's go vigorously!

If you don't have the talent to practice magic, you should practice swordsmanship.

When other children are playing, he is cultivating.

When others are resting, he is still cultivating.

And precisely because of a burst of madness, his swordsmanship has been perfected.

In terms of swordsmanship alone, he is confident that no one in this world is his opponent.

In his previous life, he was just an ordinary person, but now that he has come to this dangerous and wonderful world, of course he has to realize his dream.

And if you want to realize your dreams, you need strong strength.

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Chapter 2 Rias-senpai's teasing

The next day, Roy packed his things and was ready to go back to Juwang Academy.

The vacation time is over, and now he is a sophomore at Kuoh Academy.

Originally, the major demon families in the underworld would have their own areas under their jurisdiction.

The same goes for the Lukefergus clan.

But because Roy was too weak, Gurefia didn't arrange for him to manage an area alone.

Instead, he was placed at the Juwang Academy, which was controlled by the Gremory (Grey Molly) family and the Sidi family.

In this way, she felt relieved. After all, Roy was the last man of the Lucie Forgus clan, and it was up to him to revive the Lucie Forgus clan.

The entrance of Juwang Academy.

As usual, a group of young and beautiful girls came to the school talking and laughing.

The laughter-like appearance filled the entire academy with a youthful atmosphere.

The most important thing is that there is no boy except him.

Because under Roy's interference, Juwang Academy did not become a coeducational school like the original book, but was still a girls' school.

It's just one more Roy.

Since the original protagonist Hyoudou Issei didn't transfer to another school, Roy didn't know his situation, and maybe he had been killed by the fallen angel.

The girls who were laughing and laughing seemed to have discovered something at a certain moment.