Y/n is currently looking through all the books in the library trying to learn as many spells and skills as he can, as he did he can't help but listen to the 2 idiots agrue in his head over stupid things.

Avrora : "I'm telling you he should pick destruction magic as he's the fourth primogenitor now"

Potusdod : "just because he's the fourth primogenitor now doesn't mean he should go the destruction path in pick magic"

Y/n sighed

Y/n : "this isn't what I agreed to when I said I'd become the fourth primogenitor"

Flashback

Y/n : "primogenitor??, what's that"

Avrora : "they are the strongest and the first of the Vampire's to receive the curse of Immortality, they have power ls that can ravel the strength of a entire nations armies"

Y/n : "so if I become this primogenitor, I can gain more power"

Avrora : "yes but in order to unlock them, you will need to feed of a human"

Y/n : "so I need human blood"

Avrora : "yes, but if you do become one I will become part of you, just like that dragon"

Potusdod : "Dragon, why you blood sucker, I am the Emerald Dragon God"

Avrora : "sorry, the Green Lizard God"

Potusdod : "why you"

Y/n : "fine what do I have to do"

Avrora smiled and moved to Y/n before sinking her teeth into his neck, Y/n fell to the ground and passed out

Flashback End

Y/n had cut the connection to them so he didnt have to hear their stupid arguments, after looking through the books he found a bunch that seemed interesting.

Y/n picked up a table and moved it outside, he then placed all the books on a table and grabbed one before reading it

Y/n pointed his palm to a near by mountain and started the chant he had learned from the book

Y/n : "I am the one who knows the end and the founder of genesis. / Return thyself to the cycle of providence, / The five elements to elements, / And sever the links woven between images and truth. / Now all of creation shall perish here, / At the distant ends of the void."

As the beam it the mountain it destroyed half of it with ease and kept going, as it did Y/n's eyes were wide opened and Potusdod and Avrora went quite

Y/n : " holy shit"

Y/n then looked at the other books he had on the table

Y/n : "how powerful are these spells"

Elsewhere

As Y/n was trying powerful spell and destroying the near by mountains, elsewhere The Lion King Organization reserved word from their spy that was keeping an eye on Avrora, that a new fourth primogenitor has been chosen, but what's worse is he had The Emerald Dragon God with him making him even more dangerous.

Currently sitting in front of the leader of the Lion King Organization was 2 young girls.

One of the girls were wearing a Saikai Academy uniform, she had shoulder length black hair, with golden-brown eyes, her name is Yukina Himeragi one of the best Sword Shaman/Attack Mage in the Lion King Organization.

The other girl was wearing a normal school uniform, she had long brown hair with turquoise eyes, her name is Sayaka Kirasaka and is known as a Shamanic War Dancer.

??? : "thank you both for coming, tell me have you heard of the fourth primogenitor"

Yukina : "I only thought there was 3 of them"

??? : "well this one is many more times powerful than the other 3"

Both Yukina and Sayaka's eyes wides

Sayaka : "just how much powerful"

??? : "it is said the fourth can kill the others with ease"

Yukina : "why are you telling us this"

??? : "because we have found the frouth one"

The girls are past a photo of a teenage boy with H/n and E/n

Sayaka : "so this is him"

??? : "yes we are sending you both to observe him, if you seem him a threat eliminate him, but before you leave there's something I must warn you about this one"

Yukina : "what is that"

??? : "on top of being the new fourth primogenitor, he also has a sacred gear a blessing from God that gives humans the power to defeat God's"

Like last time the girls were shocked by this, he has the power to kill even gods.

??? : "we believe that this is is call The Emerald Dragon God, a being far more powerful then even gods them self, here"

The girls are handed a book

Yukina : "The Emerald Dragon Gaurdain"

??? : "yes we believe that this book has all the information about this boys power, now you both leave immediately"

As the girls left to gather they things for the journey

Sayaka : "what's the boys name"

Yukina : "Y/n L/n, 19 parents are dead, ordinarily from Kouh"

Sayaka : "wait Kouh, why is he all the way out in the middle of no where then"

Yukina : "don't know, all I know is we have to keep an eye on him, if he is a threat there no telling the amount of damage he could do"

With Y/n

As Y/n was learning more spells he decided to take a break from the books

Y/n : "hey Potusdod is there anything I can do more than just Balance Breaker"

Potusdod : "there is juggernaut drive"

Y/n : "Juggernaut drive"

Potusdod : "yes, it will enable you to use your gear to its full potential, as well as change your appearance into a large dragon like when you saw me"

Y/n : "lets try it"

As Y/n stood away from the building he began chanting

Y/n : "I, Who Am About To Awaken, I Am The Emerald Dragon God Who Stand Above All Others, I am The Principal Of Balance Between Life and Death, I Shall Restore Balance No Matter The Cost, Emerald Dragon God....JUGGERNAUT DRIVE"

As Y/n began the transformation all around the world even the supernatural world, they all felt a force hit them and to some they known what that meant

In The ORC

As Rias and her peerage were chatting with Azazel about training them, the room started shaking books were thrown across the room, the windows shattered into peices, then everyone felt a force hit them.

Rias : "w..what is this"

As the group was panicing only Azael and Ddraig know what that was...amd it terrified them

Azazel/Ddriag : "The Emerald Dragon Gaurdain"

In the Underworld

As the Satan's were having a meeting about the up coming meeting with Odin, the meeting was cut short when the room shook like crazy, windows shattered and then a powerful force hit them all their eyes widen as they know that power all to well

Sirzechs : "T..The Guardian"

In Heaven

As Michael was sitting down with Gabriel and Irina, they were talking about why Irina seemed down the past few weeks, when suddenly all hell broke loose as things were being thrown around, Angels screaming as they had no clue what was going on and the force suddenly hitting them, both Michael and Gabriel looked at each other.

Gabriel : "I...it that who I think it is"

Micheal : "yes, the Emerald Dragon Guardian has returned"

At The Hyoudou Resistance

After leaving the hero Faction, team Vali and Ophis were currently in Issei Hyoudou's home, but the house started shaking, the electricity went out, things were flying of shelfs and the tables, the windows exploded into shards of glass, out side car alarms were going off, dogs where barking and people were panicing, just then the group felt a monster power hit them and only Ophis and Albion know who it was

Vali : "w..whats going on, what is this"

Ophis : "The Emerald Guardian has reawakened....lets hope he isn't after us"

Back with Y/n

After the transformation Y/n could see for miles on end, he could easily step over mountains.

Y/n(mind) : "this is sick"

Potusdod(mind) : "it appears we have guests"

Y/n looked down to see 2 girls in a school uniform standing there with weapons pointed at him....

Avrora(Mind) : "The Lion King Organization, great they sent people to observe you most likely"

Y/n(mind) : "never heard of them"

Y/n got out of juggernaut drive and landed infront of the girls

Y/n : "so...who are to 2 and what do you want...."