I says to myself says I: "how can i write yandere Dream and have it stay as in-character as possible? And so this happened. The ending is kinda rushed, but overall, it's 1,865 words of "pretty okay writing"

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Dream hummed as he let loose a few arrows, his chosen targets screeching with agony as they collapsed, bleeding. Some dusted, some didn't. Dream found that he didn't care either way. Oh yes, he couldn't. Not only had they always spoken ill of his poor brother, but his aura simply wouldn't allow it. He couldn't feel negativity.

It was how he was made, after all. His Soul was made of literal positivity. If he were to feel negativity, he wouldn't be able to keep it up—perhaps for a few minutes. Ten if he was feeling especially negative. But other than that, the second he starts to feel negative, his Soul and aura lash out leaving him in a permanent binding state of joy and general positivity.

He thought to himself, humming as he shot yet another unfortunate Soul within his range. He was causing so, so much negativity, yet he felt none of it. Under normal circumstances, he would be severely weakened by this suffocating suffering. However, nothing about this was normal. Yes, Dream's own euphoria was what kept him within power. He felt so, so much joy whenever his arrows pierced whichever monster or human he deemed unworthy. He loved everything about it. The feel of his bow. The relaxing warmth of the arrows. The sickly yet satisfying squelches and the dull thumps of his arrow making contact. And the screams. Oh, their screams! Always, without fail, they screamed, cried, and sobbed out in pain and disbelief. He loved their little cute expressions, and even better were their cries:

"Dream, what are you doing?!"

"You're supposed to protect us!"

"Stop it, it hurts!"

"Please, mercy!"

"What did he do to you?!"

"This must be his doing!"

"This is all Nightmare's fault!"

Oh yes, Nightmare. Their perfect little scapegoat. Bad harvest? Nightmare. Relationship failing? Nightmare. Loved ones dying? Nightmare. It was always his fault, somehow. Even when he had nothing to do with their problems (and he never did), it was still his fault.

'In a way,' Dream pondered as he loosed another arrow, 'I suppose it is, this time.' He grinned. Yes, he did all of this to please his precious moon. His lovely star in the wide, black void that was mortal influence and greed, the very negativity his opposite ruled over and fed from. He caused all of this negativity knowing full-well that Nightmare gained strength from it. Nightmare, of course, knew of Dream's behaviors. However, every time he's tried to investigate in person, he was always sent away, hissing. See, Dream's positive aura was simply too much to approach. If Nightmare was to talk with Dream, he would need to do so when Dream wasn't so... happy.

Suddenly, it was quiet. Dream blinked, looking about the universe. Bodies littered the ground, and dust choked the air. It was almost unbreathable, but it didn't bother Dream in the slightest. He didn't need to breathe.

The guardian found himself grinning uncontrollably. Yet another universe, utterly decimated. He laughed softly, stepping about, and admiring his work. Blood pooled around every single body, and Dream internally congratulated himself. Every single shot from his bow was a deadly one, hitting an artery. Very good marksmanship, if he did say so himself. Surely Nightmare would be pleased.

Not like Nightmare could stop him, either way.

"Dream?" Speak of the devil and they shall appear! Dream turned around, his grin stretching on and on, and Nightmare swore he heard the positive's skull crack from how wide their grin was. He blinked. Surely not. When he refocused on Dream, to his horror, he found that Dream´s skull had indeed cracked. Too much exertion, too much tension. Where his lips would be, there were two cracks, each going up to his nose and socket respectively. Golden magic began to leak out of the cracks, yet Dream paid it no heed. He simply kept smiling, more and more, as his skull cracked further and further. Nightmare shuddered at the deeply disturbing sight that was his brother. His other half, tainted by emotion and ruined by love.

"Nightmare!" Oh, stars, he just- he talked, and Nightmare could feel the phantom flickers of pain on his own skull as Dream's cracks moved and bled. Dream gave a knowing smirk to Nightmare. The smirk quickly faded into an innocent and unknowing smile. It made Nightmare cringe yet relax at the close resemblance to Dream´s genuine smile. "What brings you here?"

Nightmare was speechless. Bodies littered the ground around the two guardians. Dream's eyelights were their usual size and brightness, nothing different there; yet for some reason, that made it even more disconcerting. Dream looked completely normal. If it weren't for the multitude of bodies with bright neon blue arrows sticking out of them, then Dream could have easily been mistaken for his usual chipper self. "Don't answer that,"

Why did he do this? Nightmare hated it. The negativity was wonderful, but... Nightmare knew better than to kill all. It was a fairly decent system. Kill just enough to spark large amounts of despair and depression, but also enough to have a spark of hope. Their world can be rebuilt. They can move on. And once they all did, that's when the King of Negativity would return. And so he would, and the cycle of despair and hope would return. It was a fairly consistent supply of negativity for him. "I already know why you're here,"

Dream had never quite been the same after he escaped that stone prison Nightmare placed him in. Shortly after he broke out, the self-proclaimed guardian of the Multiverse, Ink, found him and offered a way out. Dream took it, naturally. The two worked together, fighting back negativity and destruction. Dream would liberate worlds of their worries and sadness, and Ink would help reconstruct the damages caused by Nightmare's group. They picked up a little Sans from Underswap, having seen that his life was going nowhere and that his potential would be wasted. The Multiverse dubbed the trio, "The Star Sanses", and ever since, they have been the sole protectors of every world within the Multiverse... “Aren't you happy?”

At least, that's certainly how it *looks.* The reality is far worse. Ink was created as a balance in the scale, to even out Error's ruthless jealousy-induced destruction. Ink didn't care for the Multiverse, and being emotionless didn't help. However, once he realized how to synthesize emotions by keeping the Creators inspired, he began to feel a little more purposeful. However, even with the added false emotions, it wasn't enough. Then came the attention. The praise. Ink's name had been passed down in legends for centuries. He was their protection against evils, he was their saviour. Many mistook him as the Creator of the alternate universes! Quite amusing to watch, in Nightmare's opinion. “Aren't you excited?”

Then came Blue. The little tagalong buddy that always wore a smile, and was always happy. He dabbles in the illegal gathering of information on others, mostly for blackmail purposes. He had been caught multiple times, but no amount of witnesses or video evidence was enough to sway the others. It had to be a different Blue. Not their precious angel. He would never. It was statements and biases like these that kept Blue in a highly elevated position of power and influence. With that much power, he was untouchable. And he knew it. “I've finally given in, surrendered to all of my carnal desires and wants--you. Nighty, my star, I´ve done it,”

Finally, Dream. Dream was the most changed. He went from a precious being that would never do bad, to a giggling serial killer who is unknowingly wanted throughout the Multiverse. Nightmare didn't blame Dream though. He knew it was his doing. ¨Have I pleased you?¨

Nightmare swallowed. Not now, he couldn't cry… “No- No, no, you haven’t! This is NOT what I want!”

Dream frowned for a few seconds. His aura quickly kicked back in, and he was back to smiling, “Nonesene! I can feel it--you're gaining power from this. Or at least, you were… Ahaha,” Dream laughed, paused, then stared at Nightmare with a small grin. “It's okay, Nighty… You don't need to thank me. Think of it as… an act of charity! From me to you.” Dream waved, then disappeared.

Nightmare fell to his knees, shaking. This wasn't what he wanted. He hated this. One, two, then many tears. They graced his cheekbones, falling silently as the all-powerful king of negativity sobbed over the only light left in his life vanishing. Dream was ruined, having been exposed to all the wrong types of people upon escaping from the stone prison Nightmare trapped him in, a century or so ago. Other than his corruption, Nightmare regretted nothing more than ever sealing Dream away in stone. If he had only known what would occur… He felt a faint whimper slip out of him, and he didn’t stop the next one. His pride meant nothing in the face of losing his other half’s purity.

Loud, heart-wrenching sobs poured out of Nightmare at the same rate as his tears. He didn’t want to leave here, to end up facing Dream again. Nothing mattered more to him than Dream. He couldn’t fix the other, either. He could barely even exist in the same five foot radius as the other, let alone hold a conversation. Dream’s positivity was simply too much. Nightmare knew he couldn’t go back to how things were. Never. The reality was finally setting in. He had nothing left. He couldn’t even die. Dream didn’t deserve that.

Small arms wrapped around his shaking form. “It’s okay to cry,” Nightmare felt his breathing hitch and hold at that voice. “ I know positivity hurts you,” Why was Dream back? “But that’s alright,” Nightmare could have sworn Dream had left, so why was he here now? “I don’t blame you,” He wanted to scream. To push away the mockery of his brother. But he couldn’t move. He didn’t have the will to. “I’ll help you, though. With my help, you’ll be nice and accommodated to it,” A suffocating and burning feeling surrounded his soul, and Nightmare screamed out with his hoarse voice. It burned, it burned so much! What was Dream doing?!

“And it’ll start with changing your emotional alignment. Think happy thoughts for me, Night. It won’t hurt as much that way…” All he could see was a neon sort of cyan glowing from his chest, and then all became black.

Dream grinned, holding the cyan soul. He’d changed Nightmare’s soul, to one of positivity. It took so much grinding and LV to be able to do that. Even with only the twenty his soul would allow, he’d been able to accomplish many impressive feats. This was truly the cherry on top of the cake.

Dream watched as the liquid negativity that covered his brother melted off, leaving behind a frail, black boned form. The corruption stained his love’s boes, but he cared not. After all, he’d be able to keep his precious star, all to himself, forever and without interruptions.