Rise of a Dungeon Lord

So....I died

[Congratulations to the host for using ex lvl integration]

Hearing the words of the system, Arthur couldn't help but think of the solution the system told him a few minutes ago.

....

A FEW MINUTES AGO

[host, if you want to deal with this situation, then you'll have to use one of the items from the novice gift pack]

*Which item? 

[it's the ex lvl integration host]

*oh that?*

*Given that there wasn't a lot of time between school, going home, and coming to the dungeon I haven't really had time to look at it.*

It was only at this moment, he remembered there was still such an unused item from the novice gift pack.

*Cough cough*

*system could you explain what it's again*

scratching the back of his head in a somewhat awkward manner, apparently forgetting its use.

[As you wish host]

After a few seconds, a blue screen appeared in front of his face.

[Ex lvl integration (×1): fuse any two items without limitations once. (Note: this process is irreversible, use it wisely!)]

*....*

*Um.... system?*

[what host?]

*How is this going to help me out of this situation!?*

*what do you want me to do with this, merge him to the wall so he can't attack me*

Thinking of the giant skeleton he had to take on for ten minutes, he seriously doubted the system was trying to get him hacked to death.

[No host, if you do that you'll most likely be hacked to death by the demoness beside him]

With a mechanical tone, the system began to describe him as being sliced to death. 

just as he was about to refute it he took a quick peek at Anna unfortunately what he was me with was a bone-chilling smile.

*brrr*

Quickly dodging her eyes, he couldn't help but scold the system fiercely.

*can you please suggest something that doesn't involve me being hacked to death*

[Yes host, there is one option but I'm not sure of the outcome]

*What is it?*

[Merge with the dungeon!]

...

BACK TO THE PRESENT 

[host by merging with the dungeon core,  under his throne you can take control of the dungeon bringing all monsters here under your control]

*How do I do that?*

[the dungeon core is located on the side of his throne all you need to do is go near it and leave the rest to me]

Fortunately thanks to the instructions given by the system during the fight earlier he was already beside the throne.

Looking at the throne beside him covered in gold and diamonds, he couldn't help but think that just a bit of this back on earth could have made him a millionaire. Too bad he's already transmigrated.

Just as he was about to continue to admire it he noticed the sword descending in his reflection.

*system do it now!*

[host are you sure? getting hacked might not be so bad, after all, there's never been an incident where anyone's merged with a dungeon core, there's no telling if you'll still be human after this]

[even dungeon lords don't merge with it directly but rather borrow its power]

hearing he may lose his identity as a human he suddenly began to hesitate, but looking at the incoming sword and thinking of Elric's grinning face as he left, gritting his teeth he made his choice

*Yes system I'm sure, do it now!*

[Yes host!]

With the system's confirmation Arthur's body started to glow a bright white light Illuminating the whole dungeon, even Amnennar who was about to make a human shish kabob was blinded by the light, staggering backward he looked at the scene in front of him in surprise.

[Milord should we stop this?]

Although he said so, Khaled had a strong curiosity about the strange sight. Thankfully Amnennar had similar ideas.

[No hold on, he's already dead let's see what this human wants to do]

[This may be what humans call a 'last gasp']

After speaking, he looked at the scene with deep concentration as if ready to make a move if something went wrong.

As time passed, the light grew brighter and brighter till it spread out of the dungeon leaving those in the surrounding cities stunned at the spectacle.

However back in the dungeon, their attention was on something else rather than the blinding light.

[Milord, look what is that?!] 

a shout from Khaled brought their attention to a strange scene.

Just when the light was dimming down, the green orb in Arthur's backpack suddenly floated out.

Before anybody could react zoomed into Arthur's body who was completing the transformation.

*Boom!*

As if a certain taboo had been violated the whole dungeon started to vibrate as if it would collapse any minute from now.

*Boom!*

*Boom!*

*Boom!*

with loud bangs, the whole dungeon had already begun to collapse.

[Amnennar-Sama I think we should go find a way to leave now, the dungeon is about to collapse]

Looking at the crumbling surrounding a look of worry appeared on Anna's face thankfully Amnennar was quick to react.

[Got it Anna, Khaled lead the way!]

After taking a deep look at the floating Arthur he left the castle with Anna and Khaled in the lead.

Soon only Arthur was left in the room

*System?*

[yes host]

*What's going on?*

Although he was conscious during the integration, the sudden change of pace left him stunned

[host the orb you brought from your parent's house interfered with the integration process, as soon as it merged the dungeon started being bombarded with lightning from the outside]

From the tone of the system, various emotions of confusion and unwillingness seemed to be conveyed from its mechanical voice.

*so it's my fault?*

[.....]

*.....*

*System, am I going to die?*

[...]

*Sigh.....*

With nothing to be said, he waited for the worst to come as his whole body couldn't move during the integration process.

Fortunately, he didn't have to wait for long

*Boom!*

with the last boom, a flash of lightning penetrated through the dungeon burying him and everything around to the ground.