[Chapter 1]: what happens when u spam runes?

[POV Alexander]

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"ROAAAAAAR!" Ugh, my ears hurt from all this roaring.

'[Paralyze]' the moment I used my skill, purple gas spread out of my open palm and headed towards the 3 oversized lions in front of me.

The lions used their ability [Fire Breath] to protect themselves from this dangerous gas, but no way my poison could be easy to defend against.

"ROAA-" Before the lion in the middle could roar again, I rushed towards it and touched it, using my skill [Lifeforce Manipulation], I sent an absurd amount of lifeforce inside it, making it explode in the process.

After I was done with the lion I looked around and saw the other two, they were paralyzed, looking at me with the corner of their eyes in fear.

Using the same skill, I sent the life force of the on the left side to the other one, killing both of them instantly.

"The next floor should be the [Boss] room right?" I asked the orange orb next to me, he was very reliable.

"Yes master, the next floor is the [Boss] room. I suggest taking a rest and looking for an effective skill to use against the [Boss]" That's good with me but...

"Do we even know what the [Boss] is?" I had some ideas, yes. But I didn't want to get surprised, I hoped [Jarvis] could calculate what the boss was.

"We met with goblins, orcs, oversized lions, werewolves, and other fantasy creatures, the [Boss] will most likely be another fantasy creature." I see... a [Giant] perhaps? well, no use in thinking it now, I should rest. I still have 70% of my mana reserves left, but better be ready for anything.

"Well, no use in thinking about it now. I'm going to rest until my mana reserves are full again, good night [Jarvis]." And with that, I used some sleeping gas on myself so I could sleep faster.

____________________Timeskip: 1 hour___________________

"Alright, before going i should get equipped with some weapons." Saying that, i looked for a skill that can make me a good weapon.

'Hmm, [Limited Creation]' This skill could let me make things instantly as long as I could provide the materials required.

Using said skill, an average longsword appeared in front of me, well... it wasn't completely average as it was extremely sharp, but it looked average.

However even if it was an extremely sharp sword, I could add more to it.

'[Runemaster]' Instantly, I added the runes I wanted.

'[Sharpness], [Increase].' Beautiful letters started forming on the sword as I added runes to it.

'[Durability], [Increase].' The average-looking sword now looked like an artifact as I added one last rune.

Looking at the beautiful sword in front of me, I used another skill.

'[Analyze], [Replicate]' Everything about the sword entered my mind as an exact replica appeared next to it.

'Good, now let's go.'

"[Jarvis], enter my body." [Jarvis] quickly did as I asked. After checking that everything was ready again, I entered the [Boss] room.

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"Empty..?" I looked around as I had 4 longswords floating around me, charged with mana and multiple spells that would activate when they make contact with the target.

However, at that moment I heard a sound, a very loud one.

"ROOOOOOOOOOOOOAR!" I quickly dodged the attack coming from behind as I fired a sword, making contact with it, the spell I inscribed on it activated.

"*Bzzzzt*" Lighting shocked the abomination in front of me as I fired even more swords at it.

*BOOM* *BOOM* *BANG* *Bzzzzt* *add other epic sound effects here*

____________10 minutes of firing swords filled with spells later__________

'Well... I might have used too much power.' I thought as I looked at the ashes that were the [Boss].

'It was fun though... worth it.' I got up from my sitting position and walked towards the portal, looking back one last time I exited the [Dungeon].

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"Hmm, I feel stronger." It was a weird feeling, suddenly getting stronger.

"It's because master ate the souls of the monsters inside the [Dungeon]." that's interesting... I thought going through such weak monsters wouldn't make me stronger.

"[Jarvis], can you exit this dimension with me?" If he could get out with me, I could ask him to hack into the security around the world. That would make finding the world I'm in much easier.

"I can, What does master want me to do?" That's good. I didn't want to use something like [Nature Manipulation] or [Technomancy].

"I want you to hack into the security cameras around the world, look for anything out of place."

"Understood. I will get to it as soon as we exit the [Hub]" he quickly went inside me as I exited the dimension.

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"Home sweet home" I talked out loud as I crashed into the couch. I am a lazy person, just getting OP and changing my race wouldn't make me any different.

'[Jarvis] how long would it take for you to hack into the security cameras?" I asked my trusted AI.

'Around 6 hours.' I see... that's longer than I thought. well, time for a nap.

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[Authors Corner]

The first World is going to be like this:

8 Devils/Fallen angels and 8 Humans/Angels will have a deathmatch with each other.

4 devils, 4 fallen angels; 4 humans, 4 angels.

the winner team which will either be the [Dark Side](Devil, Fallen Angel) or the [Light Side](Human, Angel) will get the Holy Grail.

The Holy Grail will work and won't be corrupted.

The MC will obviously be a Master.

The Fallen Angels will be eviler than in the anime.

So the Plot is the MC(which is still half-human) will make sure the [Dark Side] doesn't get the grail while altering the timeline as much as he can.

ex: Making sure Issei isn't praised as a hero, Stealing the heroines(he won't. this is just an example, I plan to make this no harem. if I make it harem then it will be small).

Why make a story with DxD in it but no harem? because I can.

My knowledge of Fate isn't that good so expect mistakes here and there.