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The Overlord of Mysteries

An Overlord - Multiverse Travel Fanfiction [On Hiatus till January 2025, due to exams] The protagonist, Mc, was betrayed by the world and his expectations, which led to his death. After meeting a being called ROB, Mc played a game with him to obtain cheat abilities. ROB then transported Mc to a world, from where he would get isekai'd to another world - Overlord. Mc is a dreamer who can be both kind and cold when necessary. He follows Machiavelli and Chanakya and is a fan of horror and Lord of the Mysteries. The story will begin with Mc having no powers related to Lord of the Mysteries, but he will try to build his guild based on LOTM themes. His NPCs will mainly be from Fate, LOTM, and other popular fiction works. Mc's in-game character's powers and events could be inspired by other Overlord fan fiction. Word Count Every Chapter: On Average around 3k to 7.5k. Note: This is an AU Overlord world. The AU part is Mc reincarnating as Bruce Wayne in Gotham of 22nd century of Earth in Overlord verse. The first volume is for Character development and doesn't affect much of your reading experience if you decide to skip it. The first volume is Batman Vs Joker, so you can skip it. If it's not to your taste. Batman[MC] and Joker are the only DC characters in this fic. The Batman arc will be over with the first volume. The second Volume is purely a Yggdrasil Game experience. There isn't much real-life experience shared in the second volume. 22nd-century Earth is a normal world with no magic or supernatural elements. Everything is the same as the original Overlord world. Except for there being Gotham in America and Bruce Wayne in it. Even the Joker is not the same as the comic version, at least his back story. You can skip from the fourth chapter of the First Volume to not miss out on the development of his wishes and the main base of the story. I'm the author of this fanfiction. As English is not my first language, constructive feedback is welcome. I'm a college student, so the upload schedule will be irregular, but I will strive to upload at least one chapter per week. I'm not asking for power stones, but I do appreciate comments and reviews, which may lead to more frequent uploads. The choice is yours, whether you decide to give power stones or not is fine. It is your choice. If you do decide to give, I appreciate it. I aim to upload four chapters per month. Note: Mc has Gilgamesh and Satoru Gojo's template. The image used in this fic as the cover image belongs to their respectful owner. Disclaimer: This is a work of fan fiction based on multiple existing anime/manga series/TV Shows/Movies/Comics. The characters and settings used in this story belong to their respective owners and creators, and no copyright infringement is intended. This story is purely for entertainment purposes and is not intended to infringe upon any existing intellectual property. I do not own any of the original works that inspired this fanfiction, and I fully support the original creators and their works. The image used for the cover or others does not belong to me. If you are the rightful owner of the image in question and would like to request its removal, please do not hesitate to contact me. It is my utmost priority to respect the intellectual property rights of others and I will ensure that the image is taken down expeditiously upon receipt of your request. References: [1] Overlord - Kugane Maruyama [2] Lord of the Mysteries - Cuttlefish That Loves Diving [3] Fate Series - Nasuverse [4] JJK - Gege Akutami [5] DC [6] Marvel [7] Anime

ChaoticVoid_24 · Anime & Comics
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59 Chs

3. The Beginning

Hello, this is my first time writing a fanfiction. If you notice any errors, please feel free to give me constructive feedback. English is not my first language, so if you notice any mistakes, please mention them in the comment section at the end of the chapter. Let's continue with the story!

Word Count: Approx 4500 words

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Earth 2125

In a mansion at the edge of a city.

A teenage boy could be seen sleeping on a bed in a room in the said mansion.

His consciousness began to waver, he slowly opened his eyes lids.

'Where am I? Have I come to the Overlord world or was it all just a dream?'

"So was it successful? Is this the Earth from the Overlord universe? Or was it all a dream?"

Just as he was getting up from his bed, he spotted a small briefcase and a long cylindrical box lying by his bedside.

"Interesting, the ROB did keep its promise. Let's check what all things have we got here?"

He quickly moved from his side of the bed to pick up the briefcase and the cylindrical box.

After getting the briefcase and the box and making himself comfortable on the bed, he opened the briefcase first. The briefcase had the book, the very book he designed at the start of the game.

"So here is the Book", 'The book said to be able to grant Omnipotence. I could never say this out loud, not even in this world or even in my home. You never know when someone is listening, the people of this world may think of me as being delusional or a fool but you never know, when someone could take his chance at robbing this book. The world is messed up as it is, you can never say when someone might just go insane. '

After running his fingers across the book and getting the feel of the intricate design on it. The design he had designed and had ROB build it, he tried opening it but failed.

'I'll have to find the key as soon as possible. While I have the book I am not the strongest person in this Omniverse and The worst thing is, even after going to the New World with my game avatar and the cheats given by ROB it will or can make me one of the strongest beings in the Overlord universe but I will still be far from being the strongest in the Omniverse.'

'Let's just hope that the quest is something easy, a quest that I should be able to accomplish with my strength.'

"Ahmm!" All he could do now was sigh and leave this problem to the future.

'I should hold onto this book safely till I complete the quest. But first I should think of a way to keep it safe till I reach the new world. After reaching New World, I can store it in GOB. Not just this book, I should also survive till I reach New World and not just get killed before the game launch.'

"Well that's where you come in," He picked up the suit next. "You and this cane, you both are the personification of ROB himself. The strongest armour in the whole Omniverse. I should just be careful, this armour doesn't cover my head, but I still have a hat that came with this suit. That should count"

'While some might call me a fool, for this action others may hold me in high regard. There is both positive and negative side to this.'

'The cane is a very strong weapon. I should be able to kill just about anyone with this. It is after all the strongest weapon in the whole Omniverse but the downside is that this cane can also be used to kill me. It doesn't matter if I even end up as the sovereign or ruler of the Omniverse. This cane would still be able to kill me.'

'But I got it for free and I didn't have to waste any wish to get it, that's a plus. A weapon to kill anyone in this Omniverse. I have nothing to be afraid of, except when the enemy kills me before I can make use of it or this weapon is used against me.'

With a heavy heart, he set aside the cane. While placing the box aside, his eyes caught a glimpse of a letter lying on the table by his bedside. He got up from his bed and picked up the letter, 'So what does it say' He skimmed through the whole letter while standing. He finished reading it in one breath.

'It's a letter from ROB, according to the letter my name in this life is Bruce Wayne, and I am currently in Gotham, the home of Batman. My parents are dead and I am 16 years old. Yes that's the gist of it

"So I am currently in the room of the infamous Batman."

After placing the letter back on the table, he moved towards the balcony in his room. He could see a quarter of the city. The most infamous fictional city of DC.

"This city is quite different than what was shown in the movie or the comics. Well, I should have expected as much seeing it, hmm!" He looked around the room, and he found a clock mounted on the wall. It was an ancient giant clock. He started looking around again and found a modern-looking clock, placed on a table on the other side of the bed.

#07:24:06

#24 May 2125

'It is year 2125, hmm! Interesting"

"Well, it's 2125, the city would have changed with the flow of time. The city looks more futuristic but still, it gives off the feeling of depression. The Dark vibe, and also there is barely any sunlight. The sun should have risen some time ago but it is still dark. Those ominous-looking clouds just add to the aesthetics of the city."

He kept staring at the clouds, trying to find the sun. But failed to find it.

"Well, the Earth in the Overlord universe was said to be beyond saving. Nuclear warfare has destroyed most of the world as we knew it. Nature has been polluted and destroyed with each passing day. The technological advancements also played a huge factor in deteriorating the condition of the planet."

He sighed loudly, thinking about the condition of the earth.

"It's 2125, so there is still a year before the game will be released. So what should I do in the meantime?"

While thinking about his plan for the foreseeable future. Since he already had a rough idea about the game and its features, he got busy thinking about how best to use his knowledge to get ahead of others.

"I should first buy some stocks in the company, the company which created and owns the game Yggdrasil. It will give me more freedom as a player. I can also keep in check about any major events or changes happening in the game with my presence."

Mc couldn't contain his excitement. A lot of thoughts were flashing through his mind. Unable to contain his excitement expectations for the game were rising.

"I still can't believe that I am in the Overlord universe, and as Batman no less."

His mouth started twitching and he started laughing out loud, unable to control his excitement.

"So, let's do it"

He cleared his throat, all the while standing on the balcony of his room. It was the moment of truth.

"I'm Batman"

"I said it, and this time as the real Bruce Wayne"

"That was great. I may just be 16 years old but I still have good height and a good physique. I didn't notice it earlier with all the excitement but this body does feel more light and I am more flexible."

'Let's check my strength'

Bruce moved towards a pillar attached to the wall in his antique-styled room. He chose this pillar specifically to not destroy his room. The chances of him breaking the pillar and destroying the support for his roof seemed high. He couldn't have his roof falling on him now, could he?

Bruce got into a boxing stance and then punched the pillar. The punch was swift and carried all the strength his body could muster,

"I expected nothing less, I was able to leave a dent, on my hand that is. I should just get an x-ray just to be sure."

Bruce moved away from the wall and sat on his bed, nursing his hand.

"I shouldn't have been impatient, he did say that I would receive all those cheats after getting summoned to the New World. I have a total of six cheats. Wait, what about the assistant? Do I get it now or later" He heard a gender neutral robotic voice, soon after asking the question.

<Good Morning to you Master. I am your assistant ready at service>

"So I also get the assistant now. Fine but what were you doing till now my assistant"

<Waiting for your orders Master>

"You could have warned me"

<Ready and waiting for your order Master>

"Fine"

Sighs loudly once again. 'Am I not sighing a lot recently? What has my life become?'

Sighs again

"So what do I call you?"

<I was getting at it, Master. To fully use my capabilities and operation, you need to name select some options boot up>

"Okay, let's do it now"

<Name:? >

<Gender:? >

"So just the name and gender? But why do you even have gender? You don't even have a body. I thought you would be similar to Jarvis, Raphael aka Ciel. But now that I think about it, Ciel did acquire a body."

"Okay if you don't wish to answer that then it's fine. I've decided, I am going to call you World. As per the agreement, you are supposed to be my most loyal subordinate and are never going to betray me under any condition. At least that's what ROB said, and I trust him. "

<Name Registered>

"As for your gender, I'm not sure about it. Before I was planning on naming you Jarvis and just being like Iron Man. But it may be due to circumstances and various other factors, I ended up naming you World. Okay, let's go with the female. You'll be the second woman in my life except my mother, whom I can trust to not betray me."

<Gender Registered>

"Well, enough of that. So, Hello World"

<Hello to you Master>

"Okay, so can you not call me master."

<Yes, then what should I address you as?>

"Call me S, it's the initial of my name."

<Okay S>

"That's good"

<Hidden Quest Completed>

'Wait so I completed the quest. This was fast.'

<Soul Generating>

<World Acquired Soul>

<I, World, am at your Service, S>

Bruce heard a lot of notification sounds, there was a moment of silence before he heard a female voice. The voice radiated life, youthfulness and sweetness.

"Huh!"

-------------------------

At the Dining Room of the Mansion

Bruce was having his breakfast while listening to the news.

[Mc Pov]

"Sir, you may take a rest. After what happened yesterday no one is going to blame you for not attending school. I'll inform the school authorities about your absence"

"You do that, I'll check if I have anything else to do"

I had a detailed conversation with World, and had my misunderstanding cleared. The hidden quest was not the quest that I was looking forward to. How could a quest that grants Omnipotence be so simple?

It was a hidden quest, which granted her soul. Now she can talk like a human, feel emotions like a human and think like a human would. Long story short, she doesn't talk like an emotionless robot anymore,

The person who was talking to me now was Alfred. The very same old Alfred, butler to Bruce Wayne aka Batman in the flesh. He is here, as my Butler. Thanks, ROB, now I won't have to worry about finance management and work. I can just allocate all that work to him and more importantly I can act as Batman, except I don't know any martial arts except a few self-defense moves. Nor do I have exceptional strength to bend a rifle or lift someone. Alfred returned to Bruce, while he was still contemplating his life going forward.

"I've talked with the school and they are okay with it Sir"

"Thanks, Alfred."

"You're welcome sir"

"Alfred, I was thinking of investing in stocks"

"That is a good move. It is good to know that you are taking an interest in the business. So what stocks did you have in mind?"

"Not The big companies. I was thinking of investing in the gaming industry"

"That could be a good move but why the gaming industry sir?"

"I was just browsing through the net, I found a trailer for a game. The trailer was good and the game sounds interesting. If they can do what they have proclaimed to be able to do, then it could be a great investment. They are trying to build a VR game, but this is different from the other preexisting VR games. It will be more realistic than the ones already available in the market. People will try to find paradise in the game, trying to get out of this cursed world. They have the whole world to explore and the amount of player freedom granted makes it stand out from the crowd"

"It's good that you have thought of it this much. I will look into it. So what is the Name of the Game Sir"

"It's Yggdrasil"

"Okay, Sir. Do you need anything else to be done?"

"Nothing"

Well, that's one thing out of the way. I'll try to purchase 15-20% worth of stocks. I can't just up and decide to become a major shareholder in the company. It will change a lot of things, for which I am not ready.

Minor distortions are tolerable. I can't disrupt the whole flow. The butterfly effect caused by my and Gotham's presence is more than enough. But I still can't believe that I have to go to school, once again.

Just as Bruce was thinking of ways to quit school, he heard Alfred's footsteps approaching him. He eyed Alfred to hear what he had to say,

"Sir, the sword you were asking about is complete. I got a call from Lucius"

"Ahh! The sword yes. So they completed it"

"Yes Sir, if you would like, I will have them bring it over anytime you wish"

"No no.., they did a great work building it, I'll go to them. I should also congratulate them on the effort they have put"

"Yes Sir, we will do that. We can leave after you finish your breakfast"

"That will be good"

"Yes Sir"

'What sword is he even talking about? This is my first day here, and what do I do with a sword anyway? This is the twenty-second century we are talking about, don't they have energy guns or energy blasters? What will a Sword do against them?'

<If I may interrupt S>

'So what is it World? Ahh! Right, you have my memory stored in you. So what sword did me, before I reincarnated in me want?'

<It was a Lightsaber. The you before reincarnation, interested in weapons. Futuristic weapons, and he also fan of Star Wars>

'I am not disappointed in you, the me before I reincarnated. You are a true Man. So what other weapon was he hoping to create? Now that I have you, we can boost the progress of his dream'

<Might I remind you, he is dead, which why you are here>

'Which is why I am doing this. I am trying to fulfil his dream here. This is the least I can do for his noble sacrifice.'

<Sure >

'See, you understand me and so do I understand your sarcasm. Is there any way I can undo the quest'

<You will have to contact ROB for that. I just work here>

"Sure you do dear"

'Am I not getting too familiar with you? This is a first for me. I have never got along with anyone this fast. Maybe it's just you are a robot and are loyal to me. You won't think badly about me and won't leave me. That might be right

<It was built this way by ROB>

"Right"

----------------------------------

Bruce after having his breakfast, got ready and wore his suit and got into the car Alfred had kept ready for him. Soon the car left his mansion and entered the city moving towards the Wayne Enterprises building.

In the Car

'The city is in shambles.'

"Alfred, what happened to the city?"

"It was caused by a criminal who calls himself Joker, Sir"

"Joker!"

'Joker. Do you know what this is, World?'

<Yes, it is a chance for you to become Batman>

'Yes, I have always wanted to do this. It has been my dream my whole life. I'm Batman'

<Yes, but are you Batman?>

'Yes, I'm a Billionaire or Trillionaire, well I have unlimited money cheat active. I'm an orphan in this world. What else do I need?'

<That's it>

'Conviction, hope, symbol, Justice, righteousness, selflessness. I am neither of these. Right, I am not sure about it. If I can truly forgive someone, or not kill someone. I am not sure I can make the right decision. Can I restrain myself from killing Joker, after he brings me to my breaking point, like Batman? Or can I protect myself from being corrupted by Joker? After the white knight of Gotham couldn't save himself then where do I stand in this?'

'Batman is a symbol of Gotham. The symbol of hope just like Superman. Also, I am no expert in martial arts to beat up Joker and his hired goons.'

<We should concentrate on Yggdrasil, S>

'But it won't be in right consciousness to leave him be. Batman was one of my favourite heroes growing up. I can't let this go'

<So >

'I can start learning martial arts from you. I know it will take time. But it can prove useful in future. But for now, I've decided. Let's do this, I know you are worried about my safety. But I've got this suit, it's bullet and missile proof. As for my weapon, I'll have Lightsaber'

<But you have school>

'I know but I was thinking of dropping out. It's not like the school or my degree is going to help me with transmission. Better I can just skip grades, I have you. Also because of the fight the me from yesterday got into, I am not going to school for a week. We can work with this'

<Yes >

'So are you on board'

<Yes >

'Good'

'It will be great, a Jedi Vs Joker'

---

In Wayne Enterprises RnD Department

[Research and Development]

"Good Morning to you Master Wayne"

"Good Morning Mr. Fox. So where is my Lightsaber?"

"It's right here, just follow me"

'I'm excited, what about you World?'

<I'm your assistant>

'So you're excited about this'

Bruce followed Fox, till they reached an enclosed section of the lab. A box was placed on the table.

"Here we are" Fox slid the box towards Bruce and opened it. A metal hilt lay in the box.

"So this is it"

"Yes, it was quite difficult to build it with the technology we have," Fox replied to Bruce.

'So it was difficult even for them'

"The how did you manage it?", while asking him about the process, Bruce picked up the lightsaber. He started checking out the weapon while waiting for Fox to answer his question.

"It was difficult but your idea helped me complete it fast."

"My idea?"

"Yes, it was quite a unique approach to solving the issue with a blade"

"Yes", 'Would you please mind telling me about my idea World'

<The you before reincarnated or simply put, the original owner of body thought about it>

'So it was his idea'

<Yes, the idea was to make it similar a fencing stick. But foldable, opens up when you press button. After activating, current is passed through stick and strong. Strong sharp be able cut steel. They have used approach>

'Interesting, I had thought of a similar approach in my previous life but it was a dead end. It was a good idea but very difficult to implement

"Yes, I don't know what and where you are going to use it but I would be careful while handling it"

"I'll be careful. So how does it work?"

"I'll give you a demonstration"

Saying it, Fox took the Saber from Bruce and moved towards a separate room connected to the lab. It is a spacious room, with white airbags coated walls. The very room where Bruce Wayne first drove the Batmobile in Batman Begins.

Cylindrical blocks of wood, steel with other types of metal and various materials were placed in the room. Fox moved near the block made of steel. Nearing the block, he activated the lightsaber. A purple-coloured lightsaber was in his hands.

Fox swung his arm holding the Saber, he cut a steel block. The slice was swift, the block was cut in half. The Saber was still intact and glowing purple.

"Wow, that is one good LightSaber"

"I'm honoured you like it, Master Wayne. I am not sure what you're using it for, but you should use it with caution."

"I will, I wasn't planning on using it. It's just what you would call a collectable. Having an advanced and futuristic weapon is all men's dream. Didn't you guys have fun building it"

"We did, but spending such a large amount of money to just build a toy"

"Don't worry, I own the whole company, Mr. Fox. There is no one in this company with the right to question me. Especially the expenses, projects or research headed by the company. I am the one to decide all that."

'Right? I didn't make any mistake in that speech did I World?'

<No, you have whole ownership of the Bruce Enterprises>

'That's good to know'

" Yes you are right Master Wayne, but using funds for building toys"

"Well, it will depend on how you see it. You may see it as a toy or you may see it as a step for mankind towards the future. A building block for the advancement of our civilization. Now you have managed to build a lightsaber, the next could be Death Star. You never know. The out-of-the-box thinking and the architecture design of this weapon will help you in the long run"

"I don't think we will be building a Death Star anytime soon"

"It's all about mindset Mr Fox. I have my complete confidence in you. You will achieve it. As a bonus for building this lightsaber, you can have a nice vacation and I'll ask them to increase the budget of your department. How does that sound?"

"It will be much appreciated, Master Wayne"

"Good, I want you to build a hundred of these. Wait how many do you have now?"

"We have six of them"

"You can build within the end of this month. It is possible right?"

"Yes, I still have my vacation after that"

"Yes, then see you around. Also, I'll be taking this one, as for others get them delivered to my home"

"I will see to it"

"Good, also do you have any other military-grade weapons and equipment lying around"

"Yes we have"

"Good Good, I'll check them out"

"It is yours, sir"

Bruce smiled at Fox for his answer. He shakes his hand before going to check out the other weapons.

"Don't worry, I can manage to do it alone. Don't let me distract you from your work"

"Okay Sir"

'Let's get our hands on some military weapons, World'

<Yes S>

'Since I can't go in like Batman, due to my poor fighting skills. How do you think I should do it '

<I can always hack his location and share it with the police. It be done discretely>

'So what role am I playing in this?'

<A role of a good citizen>

'Never mind World, that's the last option. Wait since you are World and I am wearing a suit and especially since I wouldn't trust my life with anything else. You can be considered as my other self or the other half. I can play as The Fool from Lord of the Mysteries. It was a great novel, we can also build our guild and my game character around the theme. Good old fantasy horror with old and outer gods in the mix. I can use the gun with a lightsaber in this fight, like a true American citizen. American breathing. '

<That could be considered racism>

'I was from India in my previous life, that should count right?'

'Well, it's fine. I am a model citizen in the eyes of everyone else. A human with no flaws is what I going with '

<Hmm >

'Did you just smirk at me?'

<No I did not>

'Fine, you and I are one. We aren't different, are we? Why do I have to hide my true self from you or hold myself back '

<Well, you don't have to>

'Good, now where are you my dear toys'

<Sighs >

"There you are, I remember this. It's the same gun and belt, Batman used to climb walls with"

<There are more advanced and variety of weapons available here than what Batman used>

'Yes, Now just you wait Joker. You will be facing The Fool now.'

"Our battle will be legendary, The Fool Vs Joker. Well The Fool/Jedi with Batman equipment vs. Future Joker"

<Yes, but don't have too many expectations with this battle>

'Yeah yeah, I know that he can never compete with me'

<Yes >

Note: This might not have been the best way I could have executed, but I have done it now. So if you have any suggestions do drop them in comment. Constructive criticism is appreciated I'd like to know your opinion of this fic. I've been curious about it. I'd like to know your opinion about this.

**The End**

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