Comprehensive Manga: The Strongest Demon King Starting from Demon High School

When Roy got up in the morning, he found that the system had traveled through three more worlds, and the number of travels had also increased once.

The next powerful enemy he has to face is the superior demon Rysel Phoenix (Lisa Phoenix).

Why did you say you faced Rysel Phoenix?

Is not this nonsensical!

Now Rias has lost several familiar demons because of Roy.

It is impossible to defeat Rysel Phoenix, so Roy is the only one to take action.

Roy would not just watch Rias marry Rysel Phoenix.

Of course, with Roy's current strength, he has no chance of winning against Rysel Phoenix.

Rysel Phoenix possesses the characteristics of a phoenix and is immortal.

Any damage you take can regenerate from the ashes.

In the original work, even Rias's magical power of destruction is of no use to her.

In fact, if Rysel Phoenix is ​​not immortal, he is not very strong.

However, with the bug ability of immortality, if someone of the same level wants to defeat him, it will be impossible without special means.

So he must become stronger quickly.

Roy looked at the three new worlds that appeared.

The first world:"My sister can't be this cute".

Is this a daily show again?......

Although black cats are cute, now is not the time to flirt with girls.

Then he looked at the next world.

The second world:"Pokémon".

This is a world where Pokémon and humans live together.

Humans as trainers will tame Pokémon, train Pokémon, and battle Pokémon together.

Breed Pokémon, or keep Pokémon as pets.

As a demon, pet familiars are indispensable, but I'd better wait until I have the chance to do it in the future.

The third world:"Demon Slayer".

The moment he saw this world, Roy's eyes lit up and he knew it was it.

Roy has a deep memory of the classic anime Demon Slayer: Kimetsu no Yaiba.

This is also a world with man-eating monsters.

This kind of man-eating monster is called a ghost.

The first ghost to appear was named Onibutsuji Muzan.

Tsuji Muzan was born in the distant past during the Heian Era.

Before he was born, Wu Mei almost died due to his weak body.

He was even born into the world as a dead baby.

But Ghost Dance Tsuji Mumei relied on his obsession with living and desperately crawled back from the gate of hell.

However, when he was less than twenty years old, he was bedridden because of a terminal illness.

Until a kind-hearted doctor developed a medicine for him to extend his life.

However, the side effects of this medicine made Wu Ke think that his condition was getting worse, so he killed the doctor angrily.

After the doctor died, Wu Mei discovered that not only his body had recovered, but also his health was restored.

He also gained an immortal and stronger body, but also began to crave human flesh and blood.

Although this is not a problem for Wuhan who has gained great power.

However, as long as it is exposed to sunlight, it will die, which has become Wuhan's most fatal weakness.

To overcome its weaknesses.

After Wu Mei studied the drug formula developed by the doctor for himself.

It was discovered that the finished product of the medicine requires the addition of a plant that doctors call"green Higanbana".

However, the only person who knew where this green Higan flower grew and how to cultivate it was the doctor.

Therefore, in order to make himself the strongest immortal immortal monster, Wu Kai began to create a large number of ghosts to find the blue Higan flower for himself.

This is the origin of ghosts.

On the opposite side is the Ghost Killing Team.

The earliest demon-slaying swordsman was Enichi Tsukuni, the second son of the Tsukoku clan.

Enichi Tsukuni was also the first swordsman to master the breathing technique.

He is extremely talented. Not only was he born with stripes, but he was also born with the ability to understand the world and the principles of breathing.

After becoming an adult, Enichi Tsukuni created his own Breath of the Sun based on the principles of breathing that he had mastered.

The main function is to strengthen the heart and lung function, thereby allowing the blood to absorb a large amount of oxygen in a short period of time.

It can greatly increase physical ability in an instant, and temporarily possess physical strength comparable to that of a ghost.

But others could not learn to breathe the sun because they could not withstand the power of the sun.

Ji Guoyuan guided them and developed other schools of breathing based on the breathing of the sun.

Including"water」、「thunder」、「inflammation」、「rock」、「"Feng" and other five basic schools.

After that, the members of the Demon Slayer Corps followed these five basic breathing techniques.

A variety of derived breathing techniques have been created.

The emergence of the breathing method gave the Demon Slayer Squad a weapon to deal with ghosts, and they gradually gained an advantage in the war with ghosts.

It was breathing techniques that interested Roy.

In fact, he had studied the breathing method a long time ago, but unfortunately he never got the point.

This is also normal. Even Jiguo Enichi was born with the breathing method, and based on this he created his own Breathing of the Sun.

Otherwise, with Roy's talent in swordsmanship, he could become a strong man just by creating his own breathing method.

So the main purpose of going to Demon Slayer: Kimetsu no Yaiba this time is to obtain the breathing method, which should be very simple to complete.

The Demon Slayers don't keep secrets about breathing techniques.

The second purpose is to collect a few dependents to enhance his own strength, preferably to make him a superior demon.

After thinking about it, Roy took Saeko's hand.

Then he smiled at the other girls and said,"We'll see you soon!"

After saying that, Roy clicked on the world of Demon Slayer: Kimetsu no Yaiba.

The next second, they turned into a white light and disappeared in front of the girls...................................................

(PS:New book for newcomers! Asking for flowers, asking for reviews, asking for good reviews, and asking for three in a row! Ask for three consecutive rounds!

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