Disclaimer: I own nothing, this is purely a fanfic for enjoyment.

Cross-over from various games, books, anime, manga, and movies.

The familiar characters you see here belong to their respected authors and owners.

"Active skill name or magic spell"

'Active skill name or magic spell in thought'

"Speech"

Time*

Noise*

(Location)


Arc 3 - Chapter 1

15 minutes later*

(Unknown Abandoned Research Factory)

Looking around the place while being invisible via [Domain Control: Elemental Manipulation - Light, Thermal & Sound]. To bend and shift the light particles around me as well as manipulating my body heat, to make it so I'm not visible, even on thermal vision. Going even further by suppressing the sound I make too. So far, I have been randomly walking around this place and learn something quickly. For one thing, this place seems to be in ruin.

Yet, for some reason, I had this gut feeling that this place is very dangerous and also something I'll regret leaving behind if I don't get what is valuable in this abandoned factory. Where I learned this was a factory due to research papers that barely readable, but not enough for me to tell what this place is meant for.

I did a quick check of my history, to search for anything that reminds me of this place, but nothing. So, for a while now, I have been walking with no direction in mind and see what would surprise me of this place. Of course, I wasn't going to walk around without my [Magical Gloves]. After all, with the feeling of the danger of this place. I have kept my guards up.

Looking around the place, where I see many junks, but a few parts I could see really advanced in technology. Yet, they are broken somewhat. Either a crack somewhere or dismantled, with parts, scattered around.

"What's this?" I raise an eyebrow, where I almost walked passed an interesting room, where there this is a bedroom that just barely intact with a bed and bookshelf with some books, that look very dusty. Yet, this bedroom seems like a private bedroom and much cleaner than the other rooms I have been to so far.

I have [Chariot Requiem] summon and have the books restore back enough that it won't break down the moment I touch it. In hindsight, I should have done this with those research papers. I might have learned something from them.

Grabbing one of the books from the bookshelf and check the front cover, to find out what this book is about, but found out I can't read a thing, making me frown since those research papers were written in Japanese for me to read, but not in this book for some reason; therefore, I slide the [Fox Mask] over my face to access the [Language Analysis] to give me access to the language used in this book. It only took a few minutes before my eyes, the words being changed into a translated version for me to read. Of course, if I remove the [Fox Mask]. The translated version of the book would revert back to the original unknown language.

I have discovered it's a journal. I didn't bother to care this may be a private research journal at all and begin reading the first page to see what is written inside.

I feel like I might have hit the jackpot in this world along with finding this place as well. Because I discovered that this is the world of D. Gray-Man with the absolute guarantee due to this journal's first page is the discovery of a mysterious material that is named: [Innocence] and a brief summary about how it is made what it's used for.

Grinning at this, I have an idea what to make now, and hopefully, the [Omnifabrication] will help me recreate what I desire and maybe with all the leftover materials in this factory. It should be possible.


A few hours later*

Well, I did it and shockingly, there were barely enough materials to make it work.

I have recreated the [Innocence: Crown Clown], but with heavy modifications to make it possible to work for me. For one thing, the [Crown Clown] would leech from my [Mana Core] to steadily grow powerful without any limit and surpass what the original version could. In exchange, the [Crown Clown] would also increase my [Mana Reserve] to match its need to grow. By the rate of 10% per day. Sadly, I couldn't increase the rate pass 10% not due to lacking materials, which is part of the reason, but mainly because of all the modifications I placed that push it into 10% only. Nevertheless, I've finally gained a way to increase my [Mana Reserve]. Honestly, I wanted it to be double the rate like with [Domain Control], but this is fine for me.

However, I discover one problem when using the material that is used for creating the [Innocence]. The power source aka the [Heart of Innocence]. The moment it destroyed, every other piece of remaining [Innocence] across the world would shatter along with it. Therefore, I switched the power source to my [Mana Core]. So problem solve. As whenever I use the [Crown Clown] it would convert the [Mana] from the [Mana Core] into [Innocence Energy].

Also, I made it so the [Crown Clown] is linked with the [Fox Mask], to replace the masquerade-style mask that comes with the [Crown Clown]. But, of course, I made it so the [Fox Mask] could be transformed into the appearance of the masquerade-style mask too. This way, I don't have to worry about finding a place to retrieve my [Fox Mask] when I lose it now. I can just activate the [Crown Clown] and regain back the [Fox Mask] right away. Going further with this linking idea. I got the [Crown Clown] to link with the [Gold Experience Requiem] to make it so the [Crown Clown] actually becomes sentient and under my absolve control. Also, I can channel [Gold Experience Requiem] through [Crown Clown], making it another bonus in case I come into a world, where I can't even partial summon [Gold Experience Requimem] and [Chariot Requiem].

Speaking of [Chariot Requiem]. I discovered there were materials of [Dark Matter] along with the [Noah Gene] during the process of recreating a modified [Crown Clown]. Something I put to good use as I turned myself into a Noah. But, without the whole memory stored inside the [Noah Gene]. That had to be removed along with any bad side-effects. That includes the irrepressible hatred towards [Innocence] and preventing other members of the Noah Family from detecting me.

Therefore, upon becoming a Noah, I made sure to keep my humanity and just made it so I can become a Noah temporarily aka the [Noah Form], I now have the power over [Dark Matter] as well, which is linked to [Chariot Requiem]. Similar to [Gold Experience Requiem]. As a way for me to channel [Chariot Requiem] when I'm in my [Noah Form].

With both powers of the [Innocence] and [Dark Matter]. I now removed the situations where I may come across in the future, where I won't have my [Magical Items] to help me and become weaponless. Of course, among the modifications I did to both [Innocence] and [Dark Matter] is that they can ignore world laws. Unlike everything, I made so far. So, no matter what, both [Innocence] and [Dark Matter] will always work and not be nerfed in any way.

Honestly, if it wasn't for [Omnifabrication], making it possible. Both the [Innocence] and [Dark Matter] would likely try to do their best to destroy each other while being in the same vessel. But, the [Omnifabrication] did as I desired. So, I don't have to worry about blowing up or just end up dead due to having these two inside me.

Onto another note; I didn't have enough to create another [Innocence] much to my disappointment at this, but I'm happy with just gaining the [Crown Clown], with a side bonus of the [Noah Gene] and [Dark Matter].

After gaining the [Crown Clown] and [Noah Form]; I begin to resume looking around the place, to see if there anything else I could take with me. I found out it was the [Dark Matter] that trigger my danger sense; therefore, I can now walk around the place without having to keep my guards up all the time and check every corner of a new room before entering in case there something dangerous that potentially kill me.

Up to now, with the help of both [Requiem Stands]. I have sensed no life form nor anything that contains a soul of a sort. Making me wonder if I might have entered the timeline period before the Black Order organization has formed. If so, this made it a bit complicated for me since if the Black Order wasn't formed yet, then the artifact known as The Cube hasn't been found yet either.

On another note; both [Requiem Stands] seems a bit weaker in the D. Gray-Man, which made me confused about this, but I didn't mind this. Nonetheless, both are still overpowered and should be able to take out Akuma. If not, I got [Crown Clown] to deal with them and [Noah Form] to deal with unreasonable people.

I glance around the place, then use [Omnifabrication] in mind to seek out The Cube if it in this factory by using it as a material for a [Magical Item], but with a condition will stop the [Omnifabrication] right away the moment it's found or not inside this factory.

Sadly, the [Omnifabrication] didn't even stay active for even a second, showing that The Cube isn't anywhere in this factory; therefore, I guess The Cube must be either found or in another factory like this one I'm in. Nonetheless, this just made me frustrated because I still need to know what timeline I'm in and to know for sure, if I'm in canon or out of it, be it before or after canon. Because if it before canon, then I won't mind waiting for a bit to gather materials to build a one-time use to travel through time and enter the same timeline as the canon of D. Gray-Man. At least, in that time period, I have the knowledge to work with than going blind. Not, that I don't mind going blind as that would make things interesting and challenging for me.


Half a year later*

(Unknown)

"Fuck. Where the hell am I?" I mumble my thoughts out loud, as I have been trying to find out what timeline I'm in the D. Gray-Man world for half a year now. Yet, this entire world seems dead, with literally no life at all. Making me think I might have entered a timeline or in a version of D. Gray-Man where all life has disappeared, leaving behind only a ruin world. I didn't even find any Akuma either, much to my confusion during the first few months as I traveled to many places.

Of course, I made sure to use the [Book of the End] to check the history of the places I've been to. Yet, the history was too big for my mind to comprehend and end up shutting down the [Book of the End], preventing my mind from being destroyed with the overwhelming history buried deep into the places.

This is the first time I've experienced such a thing ever since I created the [Book of the End]. But, this didn't stop me from doing it again, and again, just to be sure. Then, I stop after a while once I realized this newly discovered weakness of the [Book of the End]. However, this alone was enough for me to tell, that I'm way passed the canon timeline. Since I can read up to near a thousand years' worth of history. There is the chance I may just be before canon, but I have found some signs of the Black Order's existence, barely. Therefore, I'm way, way into the future, and most likely in the world, where something must have caused mankind and every life form on earth to be erased. Even the Millennium Earl and the Noah Family are gone and I've been trying to seek them out from the time I've traveled for half a year now.

The whole idea of creating a one-time use time travel [Magical Item] wasn't even an option due to this world not having the materials for it. Sadly enough, but I continued to move on and maybe, just maybe there is something else worth taking. Like The Cube for example.


A month later*

(Unknown)

So, after traveling endlessly without any destination. I have decided to jump to another world since there nothing much for me here as I've tried to seek out other [Innocence] for my usage, but nothing. Not even The Cube was found. I guess that I was plain lucky, to find the last remaining materials that made for [Crown Clown] and the [Noah Gene] too.

There is something worth being considered as good news and that is my [Mana Reserve] is at the point of me using almost 50% of all my [Magical Items] meant for combats for a solid hour while using high-end moves rapidly without any rest in between.

I place down five [Shifting Shards] and trigger the [Mana] inside of it, then a portal open for me to jump through. So, with a small jump. I enter the portal leaving the ruined world that once D. Gray-Man for another as I've obtained all I needed in this world.


(Unknown)

"Huh." I mumble to myself, as I look around the area and to my surprise. I find myself on top of some building rooftop.

A quick check and notice that I have a bit of a hard time using my [Requiem Stands]. Along with my other [Magical Items]. This includes my [Magical Gloves] as well as I can barely create a single [Microfilament Wire]. Luckily, the [Fox Mask] and the [Book of the End] is working fine. Well, the latter is somewhat fine. As I can't transform it into its katana form. But, the ability to manipulate my own history is working fine.

It's a good thing I made the [Crown Clown] and having a [Noah Form]. Otherwise, this world would become a lot dangerous for me if I face foes that could kill me with something like a bomb when I can't defend myself due to lacking the means to do so. As most of my powerful defensive [Magical Items] are not available.

So, this just made me wonder if I should switch for a different world and skip this one, then I panic a bit because I don't know if these [Shifting Shards] work!

Quickly, I set up the [Dimensional Shifting] and to my relief, I can still jump to other worlds. Then, look around to see what kind of world I am in before thinking about leaving this world for the next. Since there might be something useful in this world to take with me as I did back in the previous world I was just in.

However, going unarmed is not something I want at all. But, for the time being, I will have to go unarmed for the time being until I grab one of my melee weapons to deal with the enemy, which requires me to activate the [Crown Clown] or [Noah Form].

As I look around the area, where I find myself in a neighborhood, yet found nothing that would help me find out what world I came into. But, seeing how about 99% of my [Magical Items] are offline, including the [Requiem Stands] as both are hard to summon, but partial summon is still possible. Thanks for the small mercy.

However, I discarded the idea of staying in this world when I notice a familiar black-haired boy with glasses walking down the street, with a couple of his friends.

"Shit, how come I come into this world a second time?" I question my luck, to discover that I enter the same world with Conan Edogawa once again, making me wonder if I end up entering the Princess Resurrection world again in the next jump.

I glance over at Conan, then jump into the portal I still haven't closed yet.


A few minutes later*

(Unknown)

I found myself in another neighborhood. The moment I came into this world. I quickly test out if there anything wrong with my [Requiem Stands] and my [Magical Items]. Lucky for me, nothing wrong with them, unlike the previous world I was just in. Just the thought of staying in the world of Detective Conan makes me feel uncomfortable. Furthermore, after thinking about it.

I realized I was in a completely different version of Detective Conan from the first one I came into. For one thing, the first one I could still summon [Gold Experience Requiem] without much problem. Yet, the one I just came from, did. This means, that either this different Detective Conan has stricter rules over the world compared to the first one or there are dangerous beings in that world, that made it so other being with supernatural abilities related would be suppressed.

This made me realized, that I need to make mundane weapons to protect myself. Because if I didn't leave the previous world sooner than I already have, then chance are. I might die in that world without anything to protect myself since my [Requiem Stands] won't be able to fully summon by themselves to protect me in the moment of danger. Of course, with [Crown Clown] and [Noah Form] would make the chance very small, but it still there.

So, with a few usages of [Book of the End]. I now have multiple types of [Magical Gloves] due to it being mostly my main weapon other than a knife, katana, rapier from [Chariot Requiem], and sniper as well. These five, including the [Microfilament Wires], are my go-to weapons.

Therefore, when I come into a world that suppresses most of my [Magical Items]. I shall use the [Magical Gloves] that doesn't use my [Mana], but actual [Microfilament Wires] made and stored inside the gloves. Giving me a limited amount of wires to work with, but enough for me. If I run out of wires, I can just make more with [Book of the End].

Now, to find out what world I'm in and plan out what I could get out of this world before jumping the next. Hopefully, this world has some women suit my taste to have sex with. Because trying to suppress the sexual urge just made it worse for me after a while. Making me almost wanted to use [Book of the End] to make it so I'm not addicted to having sex with women. But, I decide that this is part of me and will not remove it from my history.

"Oh, sweet. A manga shop." My eyes pick up a familiar shop, that I mostly come to in my previous life whenever I have free time to go out.

I knew my main priority is to find out what world I'm in, but looking through the manga shop can do the job too. Not that I wasn't aiming to buy a few mangas to bring with me to read out of enjoyment. Nope.


2 hours later*

(Kuoh Town: Unknown Manga Shop)

"Ha? You think just because you're pretty looking girl, that you can demand this manga from me?" I stare down at the red-headed girl, with a body figure that really suits my taste.

A beautiful young woman with white skin, blue eyes, and a buxom figure. Her most distinctive feature is her long, crimson hair, that reaches down to her thighs with a single hair strand sticking out from the top. Her hair also has loose bangs covering her forehead and side bangs framing her face. Her height almost matching mine by a few inches.

Her current attire is a school uniform, which consists of a white long-sleeved, button-down shirt, with a black ribbon on her shirt collar worn under a black shoulder cape and a matching button-down corset, a magenta skirt with white accents, and brown dress shoes over white crew-length socks.

Overall, I'm surprised to see such a girl in a manga shop and if that wasn't enough. I knew exactly who she is.

Rias Gremory, the main female protagonist of High School DxD. The heiress of the Gremory Clan after her older brother, Sirzechs, took the title of Lucifer. Also, she is a Japanophile, who is obsessed with Japanese culture.

Rias glare at the human male, for denying her the limited edition manga that she has been waiting to get her hands on, but as the manga series itself is considered very popular had already been sold out in many stores. Then, by some miracle, she manages to find a copy. Yet, she was just a few seconds too late before someone got their hands on it. So, no, even being commented on her appearance alone won't make her feel good, after all, she already been complimented many times during high school and still is. Therefore, already used to being praised for just her look alone.

"Besides, I got my hands on it already, which it's mine to buy first. As the saying goes: First Come, First Served." I smirk at Rias, who is fuming at my remark, making me enjoy the look on Rias' face and if that wasn't enough. I'm planning to get her to serve me later without having to be in her peerage. I like being human and rather not become a devil if I can help it. But, first. I need to figure out what timeline I'm currently at.

"How much you want for it? Name your price." Rias snort, putting on a confident smile, then flip her hair back and stand straight, with her left hand on her hip. "Plus, you haven't even purchased the manga. So, why not earn yourself some extra free money instead?"

"Nah. I think I will keep this. After all, from what I heard. They won't make any more copies of this limited-edition manga." I lied through my teeth, betting on what I lied about is true. And going by the way Rias is now back to scowling at me. I say my lie became the truth. Sweet.

"What do you want?" Rias trying her best not to use her [Magic] to temporary mind control this person to hand over the manga to her, but she can't due to other people watching them right now. If they were alone with no witness nearby, Rias would have done so right away.

"How about a kiss on the lip?" I lean forward while continuing to grin.

"Wh-What?!" Rias took a step back, where she can feel her face heating up and her heart begins to beat faster by the second.

"You heard me. A kiss. Then, this is yours." I wave the manga in front of Rias. "I think this is a fair deal. You get what you want and I get a kiss from a lovely lady." I knew how prideful Rias is and betting on that I'm either at the early time of canon before Rias truly fall in with Issei or before canon. If it's the latter, then it makes it much easier for me to seduce Rias.

"Wh-Why would you ask that?!" Rias blush, for she didn't think someone would so forward and she only has seen a few men in anime/manga that are womanizer would ask such a thing. She did not expect such a thing to happen to her in real life! Even when she lives in Japan for a while now, yet this never happens to her before and now it's happening right now. Making her have complicated feelings about this.

"Why? Because I see a beautiful girl before my eyes and I can't help wanting to kiss her." I took a step closer to Rias, where she took a step back in return. "Unless..." I narrow my eyes, causing Rias to gulp. "Unless you still haven't got your first kiss yet?" I watch Rias' face becoming red. "Oh! This is just too good to be true! You still haven't got your first kiss after all!" I wasn't completely sure if Rias in canon ever have her first kiss with Issei or with someone else.

"So?! Maybe I wanted to keep my first kiss to be with someone special!" Rias yell, with her face red, ignoring the fact, that there are people nearby who are watching.

"That's all I need to hear." I walk up to Rias and before she or anyone could do something. I pull Rias closer to me by her waist, then under everyone's eyes. I kiss Rias on the lip, where I can see the shock deep in Rias' eyes, that she couldn't believe I kissed her right in front of everyone and without her permission. Then, a few seconds later, I took a couple of steps back while placing the manga in Rias' hand. I took a familiar pose, with my right thumb pointing to my face. "You expected to have your kiss with someone special? Too bad! It was me, Daisuke!"

Rias was broke out of her shock the moment she heard the famous reference, forgetting about losing her first kiss to some random person.

"Damn you, Daisuke." Rias took a few steps forward with confidence. Holding onto the manga in her left hand.

"Oh? You're approaching me?" I held my arms out, welcoming the challenge. "Instead of running away, you're coming, right to me? Even after I gave you the manga you desire?" I follow up the next line with a change of my own, where Rias continue to take another step forward with that smirk on her face. The eyes alone, I can tell she loving this every moment of what's going on right now.

"I can't hit you without getting closer." Rias said to Daisuke, trying her best not to squeal at what she is doing right now.

"Oh ho! Then come as close as you like." I begin walking forward. The distance between Rias and I shrinking rapidly.

It didn't take too long before Rias and I got close enough to reach each other.

Then, before Rias could do anything. I stole the manga right out of her hand. "Too slow, too slow!" I said to the fuming look on Rias' face, but I can see how happy she right now through her eyes. Then, I bring up my left wrist to my face, where I look at the wristwatch, that isn't really there. "Oh, look at the time. I got to go. Here you go, see ya!" I hand the manga back to Rias and walk right out of the store before Rias could say anything.

As I was a couple of meters away from the store. I counted how many seconds before Rias come out of her confusion.

"WAIT!"