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An otaku's journey to become true Emperor God(first world is high school dxd)

An otaku died for saving million and trillions of of people's from a insane terrorist nuclear attack. But he reborn in high school dxd world as rias Gremory's twin brother with a system . So now what will he do? Become lost in plotline? Or change the world to his own convenience? Let's go and see ourselves what his fate lay himself to... --------------------------------------------------------------------- Note: English isn't my first language so if there's grammatical error and misplaced then please comment. I will try to to become better... so corporate. Note:- first eight chapter is full of mistake and I'm going to rewrite them.... Near future. Note:besides zero most of all carracter belong to there respective owners. Note: Help me put this tages... Harem, wincest, op mc

natun · Anime & Comics
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30 Chs

Some Moments With Rias

One and a half year passed away after the incident with kuisha, her parents came to gremory household to formally say their thanks to zero for saving kuisha from the magical best, one day later of the accident. After hearing zero fight a magical beast within the absence time previous day, venelana become tense and gaze zero intensely, until she hears that the magical beast is a low-level magical beast, she can finally relax. Even though she knows her son is strong and can kill a low-level beast easily, without batting an eye, but as a mother, she doesn't want her lovely little boy face danger.

She started to scold and reprimanded zero, not even caring for the gaze of the gusts, who are watching them like seeing a good play.

After some serious conversation, they started to talk about there children and stuff. Venelana and kuisha's mother become friendlier after there talk about there children and one after another they started the most popular gossip in the high society right now. Zero first time saw his mother talking happily with others about gossip, and the smile on her face can show how much she enjoying this. Zeoticus and kuisha's father excuse themselves and go towards his father's personal study room, looking their serious face they probably going to discuss some serious business.

Seeing their parents are talking happily and don't pay any attention to them, he said to his mother " mother we are going to play outside."

Venelana after hearing her son's word nod to him and said " ok, but don't go too far" kuisha's mother to nod to her.

After taking his parent permission zero grab rias and kuisha's hand and went outside the garden to play. Starting with rias is quite shy around kuisha but with time she becomes friends with her.

Their families become close to each other after there first meeting and sometimes kuisha come to play at their house sometime zero and rias go to Abaddon household to play. Rias and kuisha become best friends and his relationship with kuisha is quite ambitious, though she doesn't know what this happy feeling is, it doesn't prevent her being with him but only increase her desire to being with him.

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"mu....onii-chan you brush my hair quite a while now!! can I play with little onii-chan?" Rias after seeing her big brother brushing her hair absentmindedly said that while pointing her finger to zero's family jewel which is concealed beneath his pants.

Zero's reverie got broked by rias sudden question and said " no, you can't. you are small to play with it!! and what I told you before? do you remember?"

Hearing her brother question rias cutely tilted her head and touch her chin like pondering something and said "is it, that I can play with little onii-chan when I become older? and I can only play with onii-chan's little onii-chan? onii-chan I remember correctly." it's like 'praise me onii-chan' written on her face.

Seeing rias cute action zero really want to take a bite on rias lovely rose pink cheek, and constantly mumbling like a spell " I'm not a lolicon! I'm just a sis-con!! I'm not a lolicon! I'm just a sis-con!!" well important thing should be said twice.

"Well, well rias is a good girl" zero said while patting rias head.

"hum....rias allows being a good girl!! so onii-chan should pay more attention to me." Rias said that with a big smile on her face feeling comfortable being pat by zero.

'smuch' zero kiss on rias forehead and said gently " Well, I always pay attention to my princess! so need to wary my princess!"

Hearing her big brother gentle words rias become happy, even though she knows that her big brother loves her most but it only increases her happiness hearing her big brother gentle words of reassuring. Even though she doesn't know what is this feeling but for some reason, she suddenly lost herself in her big brother gentle gaze.

Suddenly a knock on their door break their sweet moment and bring them to reality. They hear the sound of a mature lady asking permission to enter the room.

"Sofia, you can enter." zero said in a somewhat irritated voice being disturbed by her knocking.

A mature beauty in a maid uniform enter the room, she has long beautiful pale blue hair and brown colour eyes with her western beautiful face she can be considered a medium range beauty even in the underworld, she is wearing a traditional western style maid outfit.

Rias feel quite unpleasant after her sweet moment with her big brother destroy by sofia's knocking on their door. Even though she doesn't know what is that mood between her and her brother, but it doesn't stop her feeling irritated for being disturbed and said " Sofia, why are you knocked?" in a somewhat angry voice.

feeling the irritation and angry voice from her little master and little mistress Sofia become flabbergasted and only think that she comes in a time when she should not come, it's gossip around their maid network how close their little master and little mistress are and how much they treasure their alone time with each other.

She is relieved that she came with a reason and said to her little mistress " Rias-sama mistress is calling for you."

Hearing their mother calling for rias zero said to rias gently " princess, go to mother."

"mm... ok, onii-chan. Can we play after I come from mother?" Rias asked her big brother with watery eyes.

"yes, we will play," Zero said gently.

After rias and sofia go out of the room zero asked for Julie " Julie show me the quest available right now."

[yes, master]

[ Sub Quest:- Save Kuroka and Koneko.

Quest Content:- save kuroka from becoming a devil servant forcefully and being experimented.

Reward:- 50,000 SP, One Lucky Draw.

Sub Quest:- Save Shuri Himejima.

Quest Content:- Save Save Shuri Himejima from being killed by himejima clan's henchmen for saving Akeno Himejima.

Reward:-25,000 SP, One Random Reward.

Sub Quest:- Irina Shidou's First Kiss

Quest Content:- Become Irina's first friend and eventually get her first kiss.

Reward:-10,000 SP, One Random Reward.

...

...

...]

Seeing the list of sub-quest available for him right now and the only quest he can complete right now is 'Sub Quest:- Save Kuroka and Koneko.'.

It's been a while he searching for Kuroka and Koneko with his clones but to his surprise, he doesn't find them in the underworld, so he can only assume that they are not born in the underworld, they should have been taken in by devils in the underworld.

So, he informs all his clones to become activated and inform him if they found any trace c trade.

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Somewhere in the branch family of the house of Naberius, one man is sitting on the chair and one man is kneeling down in front of him.

The sitting man on the chair look at the kneeling man and asked in a dominance tone " do you find the Nekomatas I'm searching for?"

"yes, master we get some clue where they might be and within one week we can bring them in the underworld." The man said while kneeling and asked a question hesitating "they are only children and we can find teenage and mature Nekomatas if master want. what is so special about them?"

"How dare you asking the grate me questions!! your work is only to follow my order. but well I can tell you that their bloodline is purer than any Nekomatas in the underworld, so in my experiment I need them. So get lost now!" said the man while sitting on the chair in a dominance tone.