I Got Reincarnated as a Dungeon Core in a Tiny Island in the Middle of the Ocean

Haris- What happened? Where am i? What is this dark place?

Haris looks around to see if there is anything that can help him figure out where he is, but there is nothing but a dark void surrounding him. He thinks for a bit about what could have happened, what's the last thing that happened to him, in hopes that it will help him figure something out. And after thinking for a while he remembers something.

Haris- That's right, I died after being hit by a truck while returning home from school with shiori. I wonder what she's doing, is she ok?

Shuddenly the void he is in turns white and then a voice is heard.

???- I see you've woken up.

Haris turns around and sees an old man dressed in white with long white hair, a long white beard, brown eyes, he was about the same height as Haris and there was a faint light radiating from his body.

Haris- W-Who are you!?

God- I am god and as you've already figured out, you're dead.

Haris- You mean that you are god?

God- Yes

Haris- God, as we say the creator and ruler of all?

God- Yes

Haris- The one supreme being that is above all, you mean that that's you?

God- Yes, that's me himself.

God- So before we conrinue to the main reason why you're here do you have any questions?

Haris- {nods hesitantly} Yes, I do.

God- Go on then, ask away.

Haris- So, is Shiori ok?

God- Right now she is pretty sad from what happened, but other than that she is just fine.

Haris- {sighs in relief} I'm glad.

God- Any other questions?

Haris- Yes, where exactly are we right now?

God- Let's say that we're in some sort of guest room. Anything else?

Haris- No, I think I'm good for now.

God- Good. Then shall we get back to the reason why you're here?

Haris- (hesitantly) Yes

God- Then I'll start explaining. So, after death every person is given two choices. The first choice is simply to go to heaven. The second choice however is to get reincarnated to another world. Take your time to think about it and give me your answear when your ready.

Haris- Reincarnation, huh? Does that mean that i'm going to reincarnate in a world with magic, just like in anime?

God- Yes, there is magic in that world but the technology is just a bit more advanced than that of your worlds medieval period.

Haris- I see....Ok then, i think i've made my decision.I'm going to choose reincarnation.

God- Glad to hear that. So, the race and location that you're going to get reincarnated in will be random, are you ok with that?

Haris- Yes, that's ok with me. I mean, what could go wrong. And even if something actually does go wrong, how bad could it possibly be.

God- Good luck on your reincarnation. You're gonna need it after that huge flag you just raised with what you just said.

A white light then appears shinning brighter and brighter.

Haris- Wait what! What did you mean by that? waiiit.

After a few seconds that white light slowly turned blue. It's the sky. Haris looks around to see where he is, only to see...

Haris- Whaaaa! What is this! Why am I in a tiny island in the middle of the ocean and where are my limbs!