Reborn as a Dungeon Core in Remnant!?

He died and was given the task to save Remnant, but unfortunately he was reborn as a Dungeon Core. "No! I wanted to be an OP badass! Not a smelly cave!" At least he had a system, even if it was crappy, so hopefully his dream could still come true. For now someone should tell these freeloaders to leave him alone!

'What happened to me? I feel like I got hit by a truck… oh fuck…' He thought and then he remembered the loud honk that ended as abruptly as it had began. 'Oh, so I'm dead now.'

All around him was a blank expanse filled with hazy blobs of color and he couldn't even see his own body, but he did see a large rolling cloud approaching him. As it got closer, he spotted an indescribably beautiful woman dressed in flowing robes.

She cleared her throat before speaking. "Greetings, I am the Goddess known as Grace. Listen up, mortals!" She shouted after her introduction. "I am responsible for the management of Celestial Life across every plane of existence!"

'Me! Me! Me! Choose me!' He screamed in his mind, he had ignored the feelings that realizing he was dead had brought and instead tried to gain the attention of Grace. 'I'll do it! I'll do anything!' He shouted without a mouth, his situation was obvious to anyone who was familiar with the concept of Isekai.

"…I literally haven't explained anything yet. Fuck it, who cares?" She muttered and reached out a hand. He saw a gray haze move towards the Goddess, and he also moved closer. "Blah blah System blah blah save the Leylines on the planet of Remnant, blah blah any wish you want." She reeled her arm back and flung his body across the expanse.

Everything blurred as he surpassed the speed of light a countless times over and then his mind shattered.

His mind slowly gained sentience, and he realized he was in a dank shallow cave a few feet from the entrance. Sunlight was glistening off the small stalactites growing from the ceiling.

'Awesome! I've really been reincarnated! And did she say Remnant? Fucking awesome! Ooh boy, I can't wait to become a walking combat god. Ooh ohh should I get a harem? If I do, who should I make my main girl? Eh, let's leave it up to fate, the first girl I see will have that honor.'

…

…

'Odd, the entrance seems to be the same distance away even though I just tried walking to it. Uh, how about running?'

…

'What's going on? Why aren't I getting closer? I'm pretty sure I'm moving my body, or is there some lag happening.'

He tried looking down to see what was happening with his feet and the ground, and since he just saw stone but not his feet, he kept looking down until he saw the top of the entrance.

'What?'

He then tried looking at his hands but he couldn't find them, he couldn't feel them.

He turned and spun around wildly but he couldn't find his body, he couldn't feel his body.

He couldn't even blink.

'What the fuck is this!?'

Bloop! The Dungeon Core System has successfully been activated!

'Nani the fuck?'

Name: (Unnamed) - Title: (None)

Race: Dungeon Core (Cave) - Level: 1

Health: 10/10

Mana: 10/10

Skills:

Ambient Purification (Level: 1): Extracts 'Celestial Energy' from the surrounding atmosphere and purifies it into Mana.

Transmute (Level: 1): Change rocks and their shapes into different rocks or shapes.

Dungeon Management:

Resources: Gravel.

Production: Limestone.

Saving everyone the torture of going through the tutorial, just know that our protagonist had also thrown a fit and sulked for a while.

With nothing else to do, he just existed. Occasionally, enough gravel would be blown in by the wind or rain to make limestone, but not much else happened and the sun rose and fell at a blinding pace.

Just as he was beginning to wonder how to shatter his Core, something actually happened for once.

A small girl with brown wolf ears dressed in rags and wearing a large metal shackle around her neck stumbled into his cave.

Notes:

A Faunus slave, injured, runs into the dungeon. Grimm and Guards chase her. Employ and protect her.

Ore Generation.

Gem Generation.

Dust Generation.

Villages / Mining companies.

Stone- Can be upgraded to be harder.

Monitor.

Purification.

Summon.

Trap.

[Name: X] - [Title: (None)]

[Race: Human] - [Level: 0]

[Job: (None)] - [Level: 0]

[HP: 100/100] - [AP: 100/100]

[STR: 10] - [END: 10]

[LUK: 10] - [CHA: 10]

Job Assignment.

When people are assigned jobs, the dungeon and people get special effects.

Traits.