Carbon dungeon, four underground levels.

　The four of us, me, Emily, Celeste and Alice came down.

　As I came down, I turned around and looked at the floor above.
　Neptune and the three of us stayed on the other side.
　I asked them why, and they said they had something they wanted to make sure about.

What do you want to confirm? I know what it is if you want to be sure. ......

　I mumbled curiously, and for some reason, my three friends were all in unison.

''There's a situation on the other side as well.
Yeah, you shouldn't be prying.
No invasion of privacy, that's for sure.

　He stuffed me with it.

'Oh, oh,'

　I don't know why the three of them are so desperate, and Vanadium, who is holding my hand, is looking very uncomfortable.

Anyway, don't touch that thing anymore. Also, from now on, when you go up to the third floor, take a solo.
Yeah, that's more like it.
I'm for it.

　Emily and Celeste accept Alice's proposal.
　That makes me feel more and more like I'm being pinched by a fox.

　I remember what Eve told me when I was on the first floor of Carbon.
　Everyone in the family had been trained to dive into the dungeon with everyone else in the family, group combat, and how to fight when they were in a party, but they all accepted the insistence that they wanted to go solo.

　It's a situation I really don't understand.

...... (gui)
What's up with the vanadium-- the enemy?

　I was tugged on my sleeve and looked to the other side to see a monster in the fourth basement that oozed sludgy from the pale dungeon walls.

　It targeted me and began to transform.

''I wonder what it is this time?''

　I pulled out my gun and braced myself.
　I waited until the transformation was over, since there was a good chance I wouldn't drop it even if I beat it before the transformation, based on my previous experience.

'...... eh?'

　I froze for a moment when I saw the monster transformed.

　Her entire body is dressed in black. It's coordinated with belts and chains everywhere, a bandage on his arm, an eye patch covering one eye, and an inverted cross on his back.
　And an upside down cross on his back.

　The transformation was--

"Young Mr. Yoda--
Success!

　Before Emily could finish, she shot an accelerated round at herself, destroying the black history (,) itself.

　The monster fell and dropped a tokka eggplant.

'Phew. ......'
Yo, Yoda?
Why are you doing this?
She's a bit young, isn't she?
That's enough.

　I closed in on Celeste and covered my mouth with the palm of my hand.

'You guys didn't see anything, good.'

　Celeste, whose mouth was covered, nodded with a persistent nod.
　So I let go of her hand, though.

'What do you mean by that?'
You know, it looks like a...
What's wrong with me?

　My friends are secretly wondering what I'm doing with this monster.

　Maybe this is a bad place to be, maybe it's a little scary.

　Let's just move on to the next--

"Celeste, you're behind me.
What--oh!

　Celeste turns around directly behind her at Emily's suggestion.
　Then a new monster appears and begins to transform, targeting Celeste.

　Starting with Celeste, the three of us are ready for battle.
　I have a bit of a bad feeling about this, but I'm just going to watch for now.

　After the transformation was over, I made Celeste a size smaller, clever-looking girl.
　Huh?　I thought the monsters here were meant to recreate black history (...)...

''Geez!

　Instantly, a scream erupted from Celeste.

　Countless bicorn horns manipulated with strings went towards the young Celeste, surrounding her in all directions and firing a round of fireballs.

　The monster fell - and then the young Celeste dropped something.
　A notebook.

'Don't look at it, eh!

　With more exclamations, all the bicorn horns fired at the notes in unison.
　The density of firepower was even greater than that of the monster itself.

''Haha...... haha......''
Hey, what's going on?
Are you face-deep in it?
Hey, it's nothing.

　They're both worried, and Celeste covers it up with a dry laugh.
　I - pinged.

　I move closer to Celeste, in her ear.

'Is that a poem or something?'

　I whispered.

'--?'

　Celeste turned to me with a deathly surprised look on her face.

'Nah ...... nah nah ......'
Well, ...... and me earlier.
Haha!

　I smiled bitterly and scratched my cheeks as I said it, and Celeste huffed at the reminder.

'Oh, so that's how it works.'
That's what it looks like.
It's dangerous. Very dangerous.
Yeah, let's get downstairs as fast as we can.

　Me and Celeste, in sync with each other, moving on.
　Emily and Alice follow behind us.

What do you mean by dangerous?
You two were kind of desperate, weren't you?

　They were craning their necks together.

　We tried to go straight through the fourth floor to the fifth floor, but the wholesaler wasn't so wholesome, so we encountered a monster on the way, and this time it was Emily.

　If I had calmed down, I could have asked Alice to show me the safe route, but because me and Celeste were ahead of him, we encountered it.

　But that's why I was interested.
　Me and Celeste making eye contact.

　Emily's black history.
　The mother of the family, the mother of the family, the Virgin and the angel.
　What is her black history?

　So we stopped and watched.

　And then the demon king appeared.

"This ...... is me?

　Emily herself doesn't know, the demon king Emily who transforms when she sees G.
　That guy went out of control, twirling his hammer around like a certain humanoid general-purpose battle weapon and started attacking indiscriminately.

''It's true, it's dangerous.''

　Alice mumbles such thoughts while ducking the attack.
　No, that's not what I'm talking about: .......