Oneshot story ideas

The Dark Valravn and The Demon Slime

Idk where i should make them meet, the beginning, summoning Diablo, or after the Octogram you guys decide so imma just do my thing 'til then (imagine purple Rimuru with a red eye with an eyepatch on the other)

Everyone was planning on Walpurgis and everything was perfect until they discovered a problem, even with Veldora as their backup, he was still in a weak state so going against Milim will be quite difficult, they weren't going to take any chances so they started thinking of someone who can come but no one can think of anyone until Rimuru thought of someone
Rimuru: I think I might know someone who can help out, though he's not exactly one to do things just because someone asks
Ranga: Who is it Rimuru-sama?
Diablo: Yes, I'm curious as well
Rimuru: I'll call him tomorrow, and see if he'll come
Shion: Shall I prepare for this special guest Rimuru-sama?
Rimuru: No...he'll probably come when the time calls for it, he is a busy man
Shion: I see

Time Skip

Rimuru is in a fight with Milim and about to get hit when suddenly a hand grabbed her arm and Veldora appeared to block it with his own head
(I can't be bothered to make that little conversation)
The person started coming out with his body completely contorted with bones cracking back in place (Like wanda coming out of the mirror dimension, minus the cuts)
Everyone (minus Rimuru, Guy, Milim, Rhein, and Misery) was shocked to see a boy that looked like Rimuru except more masculine and older, he looked at Milim with a cold and unimpressed expression
Rimuru: Always coming at the last second ey?
???: Well I am busy taking care of my people Rimuru


Ramiris: Who is that!?
Guy: That's the Prinz der Nacht Karasuyaorou von Mondpalast Sturm
Ramiris: "Karasuyaorou? Woah, I haven't seen him in thousands of years" Ramiris examined Yaorou from head to toe "He looks so different from the last time I saw him"
Guy: Well it is him, and looks like he's finally decided to come out of his room


Karasuyaorou: Hello Milim, we meet again
Milim stayed silent and stared blankly at Karasuyaorou with dead eyes
Veldora: Not talking ey Milim?
Karasuyaorou: Well it won't matter
Veldora: We should totally talk after this, new guy
Karasuyaorou: Why not, but for now
Both Veldora and Karasuyaorou turned to Milim
Veldora and Karasuyaorou: You'll show us a good time, won't you, Milim?
Milim nodded her head and the 3 of them got into a fighting stance

Veldora was the one that attacked first with a move from an anime and then Karasuyaorou used his Arrows of Nachthimmel which shot arrows of light that resembled shooting stars

Karasuyaorou knew Milim, she couldn't be hypnotized, that would be impossible to do, but he was still going to give her a beating

Milim easily dodges and went in for an attack which both Veldora and Karasuyaorou avoided, this went on for a little, with Milim being beaten by Karasuyaorou, of course not so much that it would be life-threatening but something that would hurt in the morning

Karasuyaorou used Depths of the ocean of stars which made a flood of stars that trapped Milim in Stellar prison: Crux and Veldora used Hadouken to attack Milim. Milim got hit by the Hadouken and the Depths of the ocean of stars so she couldn't dodge and her face got bruised. Karasuyaorou used Kamaitachi that sent a tornado with purple weasels with thunder sickles that cut Milim a little bit

Milim broke out of Stellar prison: Crux and went to Veldora for an attack but before she could hit Karasuyaorou used the Nightfall technique: to create a barrier of Moonlight that shielded Karasuyaorou
He then punched Milim that sent her back

It was attacking, dodging, and blocking until Milim made a mistake
Milim went for a punch but accidentally gave Karasuyaorou a real punch


Guy: Oh dear
Ramiris: She's dead...


Karasuyaorou didn't move only his head turned from the punch
Milim's eyes widen, she didn't mean to actually punch him, she was about to apologize and break character when Karasuyaorou slowly turned his head and opened his eyes to reveal dark abyss-like eyes clearly furious. Karasuyaorou started to chant the Ein Immermitternachtstraum spell

Wolken hoch oben
Ich befehle dir, eine Form der Dunkelheit anzunehmen

Dark clouds started to surround him

Die Sonne und der klare Himmel über dem Land
Verneige dich und unterwerfe dich dem Mond und den Sternen

Everything started to get darker and a miniature version of the moon appeared in his hands and the dark clouds surrounded the small moon

Ich beschwöre die Kreaturen des Immernachtreich

Different creatures, Raven's, Wolves, Gargoyles, etc. started to come out of the shadows

Rabenritter der Nacht
Schrei wie Donner und breite deine Flügel aus
Bedecke den Tag mit deinen Flügeln der Dunkelheit
Trenne die Nacht vom Tag

Black ravens spread their wings and started flying everywhere

Ritter der Nachtwölfe
Heule und lass die Sonne scheinen
Verbanne alle Farben des Mondes und lass ihn hell leuchten

Wolves howled loudly making everyone cover their ears

Sternenozean erhöre meinen Ruf
Mögest du mit meinem schwarzen Umhang von allen gesehen werden

A cloak of darkness started to form around Karasuyaorou and his body started to glow a bright white

Lassen Sie niemanden Ihrem Blick entkommen
Und besiege diejenigen, die sich dem Prinzen der Nacht widersetzen

Stars started to appear where his cloak is, spreading, slowly

Wolken der Dunkelheit
Ich gebe dir meine Macht
Schlage meine Feinde mit donnernder Vergeltung

The dark clouds started zapping with lightning and boom with thunder

He was so close to finishing the spell and removing his eyepatch when all of a sudden Clayman started yelling and ordering Milim to use something that would kill everyone here, but he didn't care, MIlim then revealed that she wasn't being mind controlled and all was peaceful after Clayman got killed, but

Rimuru: Ok now that everything is settled....um Karasuya?
Karasuya: Ummm... help
Karasuya revealed that the Moon and the storm were getting bigger and bigger
Rimuru: Gah! Stop it!
Karasuya: I can't!
Rimuru: Why not!
Karasuya: I don't know! I've never stopped mid-chant before!

Guy: Karasuyaorou!
Karasuya: Guy?
Guy: Aim it up! Use all your strength!
Karasuyaorou: I can't its too heavy!
All the Demon lords were backing up, they could sense a large amount of power coming from the moon-like orb that was getting out of control
Guy: Then aim it toward me
Karasuyaorou: Im sorry what!? Need I remind you that the last time I used this, you almost died!? And I've grown more powerful after all these years!
Everyone in the room had their eyes widened 'This almost killed Guy!' they all thought
Guy: You're not the only one who grew stronger in these past thousands of years, Karasuya
Karasuya: "......Alright," Karasuya said relieved but still slightly worried, but shot the spell towards Guy anyway
Guy was still worried, he got flashbacks from the last time he got hit with this enchantment, it was both mesmerizing and terrifying, he was still kinda worried but was still going to take this. The spell went fast and it was only getting bigger, everyone was getting ready to leave immediately, Guy put his hands up, and as soon as the spell hit it pushed him back a little, Guy struggled to break the spell, it hurt a lot, it took all of his strength to even start cracking it
Rimuru: Karasuya, lets go help him
Karasuya: *Huff* o-ok...*huff* lets...go

Rimuru started using gluttony on it but it was really difficult since it was a lot, Karasuya started saying his spell backward which made it start fading really slowly, and Guy was holding it and trying to break the spell. Once the spell was undone they all went on their knees completely tired

Time Skip

Guy: So Karasuya, why don't you become a demon lord? I mean you already have the power
Karasuya: Well after this, since Rimuru is also becoming a demon lord I suppose I will to
Guy: Great!
Rimuru: Wait, don't we need a new name since there are only 9 of us now?
Dino: Man! It took us forever to just think of the 10 great demon lords!
Milim: Well Rimuru could just pick a name! he's great with names!
At first, Rimuru declined but after some "encouragement" from Guy he agreed, Rimuru looked towards Karasuya and as if the both know what the other would say, they both said the same thing
"The 9 Rings of the Central World"

His nickname is Karasuya (I just combined the kanji's of wolf, prince, night, and raven and just made this name) Karasu means raven, ya meaning night(I just saw it in Japanese name info) o for prince, and rou for wolf (also read it in Japanese name info)