When Zaiden died on Earth, he was reincarnated as a 12th prince of the demon lord. At first, he was confused then he was scared because the world is very different from the Earth. After some years living in the demon lord castle, he can take care of himself. Because he always attends a war between human and demon race, he grew stronger with his sword and his magic.

On his 17th birthday, he was stronger, smarter and faster than his brothers. Therefore he was the first candidate to became the demon lord. His life is basically perfect, but everything changes when the human summoned heroes from another world, they grew faster than him because they're blessed by the gods. After that, his activity mostly is just fighting, because he wants to be stronger than before.

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Timeskip

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On his 50 years in another world, he already conquers the world, his life once again fulfilled and is relaxed.But even though in many years he never forget his previous life, therefore when the world is in his hands he orders all the mage that specialized in summoning to research how he can back to the earth. After 10 years of hard work finally, he can come back from where he came from, but the cost is severe. He needs to fill up the magic circle with plenty of mana and by plenty I mean 10 Lv.500 Dragon, 5000 Lv.150 mages, 500 Lv.300 Dungeon core and 10.000 Lv.100 Magic core worth of mana. Luckily because Zaiden is an expert in magic he has almost infinite mana thus he can fill the formation himself.

*In the middle of unknown forest*

"Huh."

"argh"

"Fuck it hurts."

A naked red skin demon is rolling on the ground while holding his head.Finally, after the unbearable pain on the head is gone there he stood 182cm tall, 30cm long horn on the head, muscular body, red eyes, black hair and a handsome face.

The demon is like everybody just guess...... its Zaiden Ba dum Tss

First Zaiden changes his skin color to match the human, the eyes, and then he hides his horn. After changing his appearance, he flies above the trees on the forest but not too high and try to find a town or something so he can get a clue. And when he found one he hurriedly flies to the town direction.

When he got transported to earth, all the nonorganic matter disappear to the void luckily he had an inventory skill and with his almost unlimited mana the size of that is enormous. So while in the sky he wears the clothes from his inventory, so he will not appear like some nudist.

Zaiden landed on the outskirt of the town to stop and scout the from a distance. He learns that he got transported to Asia, but he still doesn't know where the hell is this. So he began his investigation to find out where is this and to see whether his family and friend are still alive or already dead.

When he strolling in the hallway (school hallway) with invisibility while checking the panties of the student, he finally knows where the hell is this place. Japan, long ago when Zaiden is still human on earth he always wants to come to Japan and experience the culture because he is an otaku that loves novel, manga, and anime. Actually that one of the reasons why he can be so good in the fantasy world and magic.Thus he hides one of the students on the toilet and disguises as him as he goes out to explore the school. When he listens to the teacher (with magic it's easy to learn a new language) inside the classroom, suddenly the world turns black.

When he opens his eyes and see around him, all the student inside the classroom is standing on the white platform inside a big white room.Besides the student and teacher, there was only one figure inside the chamber. That thing can be described with one-word, G I A N T. When everyone sees it, that thing gets up from his chair or throne and open his arm full and then says.

[Welcome Human to my domain]

his words are like thunder sound all around the room, and he continues

[I know you all is very confused by now but don't be afraid I won't eat you. Instead I want to give you all the chance to live in the fantasy world. How about that ?]

By now half the student is excited, and half are still questioning why they suddenly arrived in the big white room most of the excited one are the otakus.

[Of course, if you want to live in another world I will give you power to live in there because you know monster and stuff]

"Umm sir.." One of the otakus raised his hands

[Just called me God]

"Sir God ... I mean God-sama, why exactly are we chosen by you ?"

[Actualy we the gods in the multiverse is combining our power to create another universe with all the characteristic of all ours universe into one, so we can send our own people and live there and enjoy the show and you all of you in here are the lucky soul that I choose to send there and btw there other not just you guys here]

[ Now any question? No okay, move on. Each one of you will get a power that suits you the best, so if you got a trash ability, you only got yourself to blame. You will be transported to different location from one another, and my suggestion doesn't try to find each other because the world there is big, the solar system itself got 10 planets the size of 100 suns combine together so it's hard to find each other except if you have really really lucky then maybe just maybe you can find your lover. Now here's the rule: 1.Do whatever you like there. 2.The strong are right, and the weak are wrong.

Now Bye bye I hope you enjoy your stay there ]

Zaiden jaws dropped to the ground after he listens to the explanation.Really after I just got here some random god transport me to another one? Fuck fuck it arghhhhh fuck fuck fuck I will show you that nobody mess with the demon lord argghhh