Random Kny One Shots [Requests Closed] Orange Spider lily | {KokuZan}

Theme: Angst

Kokushibo and Muzan were secretly dating. Well, ‘secretly’ is a term that they use but isn’t actually true. It would be secret if it weren’t for their horrible skills of secrecy. Unfortunately keeping their relationship within the two of them was out of their hands, though they had somehow hidden their existence from most humans for centuries. Which made it so stupid. But.. neither of the two cared, at this point, because it’s not like it would be harmful for anyone to know.

Muzan often visited Kokushibo, because of their relationship or so he said. Today was different though. Today he’d discovered something. And so, this time when he went running to Kokushibo, he was smiling. Something quite curious to the Uppermoon, given that he’d never seen a smile quite that big on his Master’s face.

“Kokushibo! Look, look I found something,” Muzan said, almost like a small child finding a particularily pretty rock. 

“What is it?” Kokushibo inquired.

“This.” Muzan thrust out a bag that held two beautiful flowers. They looked quite like spider lilies, only they were orange.

“Orange spider lilies?” Kokushibo asked, confused. “Did the color seep out from the sun?”

“No, no, they’ve been like this for a while now! I was looking through some red spider lilies and I found these!! It might be the key to the blue ones! I’m going to use some for experimenting. I’ll try it and see if it’ll make me be able to go in the sun. I’ll use it first though. If it works you can use the other spider lily for yourself,” Muzan explained, clearly having thought this out before.

“Oh? How interesting,” Kokushibo agreed, inspecting the flowers closely.

Muzan nodded and took them back carefully. “I’m going to try to make something that I can easily drink, alright?”

“Okay, I’ll wait here.” Kokushibo watched as Muzan excitedly went to his working desk where he instantly pulled out several drawers filled with liquids of all variations.

Over the next few weeks, Muzan experimented with the flower and the different assortments of htings he’d made over the centuries. The whole time, Kokushibo stood by, retrieving what Muzan needed and always there for whatever happened. Eventually, Muzan decided he would try his concoction, saying if it didn’t work that would be alright since he was a demon, and if it did, well, he had it all memorized and he would make it again for Kokushibo.

So, that day, Muzan downed half the flask and then waited. He felt nothing so he told Kokushibo to cut off his arm and put it somewhere where sunlight would shine soon. The two demons watched the hand from the safety of inside while it sat there, Muzan’s arm had long since regenerated. Then the sun came by and burned it to crisp. Muzan sighed. “Maybe it just needs some time?” he suggested. Kokushibo agreed.

The two went back to Muzan’s work room and talked. After a while, Muzan fell asleep and Kokushibo put him in a comfortable place, deciding it had just been from the amount of work his Master had been doing recently.

The next day, Muzan awoke with a headache. He complained that he felt dizzy and was a little wobbly standing up. But that would wear off eventually. The same as the day before, they cut off Muzan’s hand and put it in the sun, watching it burn, yet again. 

“How long would it take to set in?” Kokushibo asked, confused.

“If this continues through the week, maybe I should just try again,” Muzan grumbled. “I still have one and a half orange spider lily flowers left.”

“Won’t they rot?” the Uppermoon pointed out.

“No, I froze them so they’ll be contained fresh until I need them.” Muzan placed his hand on his hips in an almost proud manner. “I’ve thought of everything!”

Kokushibo laughed and nodded. “Yes, yes you have.”

The day seemed to pass by rather slowly for Muzan for he was very tired. Eventually he went to sleep again, hoping he would feel perfectly fine when he woke up. Unfortunately for him, when he woke up he felt considerably worse, the headache being stronger and the dizzyness that had previously disappeared for a couple hours, had come back fully. Only a couple steps could lead him to nearly tipping over and Kokushibo had to help him walk, which was extremely frustrating given he felt so useless like this. So weak and foolish. 

Two days went by, and he didn’t seem to be getting better. Each day they would cut off part of Muzan’s arm, though each day they resorted to cutting off less and less, because Muzan’s condition made him have to focus all his strength on fighting whatever this illness was, and not on regeneration. Each day they took the piece of flesh and put it in the sun, only to watch it burn.

(Why did it take me so long to figure out how to write that paragraph 💀)

Muzan’s illness only grew which was starting to bring back memories. The constant help he needed from Kokushibo, to fetch him some food, to take him simply to the other side of the room, it was frustrating and he was starting to actually get worried. 

By the end of the week he could not only barely stand but his regeneration was nearly twenty times slower then his normal rate. He hated this. He was trying to convince himself this was all a before affect of the spider lily but it really, he didn’t actually believe it. As much as he wanted to, it was becoming obvious that he needed to stop this. And soon. 

But how? He didn’t know how. Didn’t even think there really was a way. He felt hopeless. 

Kokushibo tried keeping him going, but it was hard when he himself shared these worries. He constantly fretted over Muzan and tried keeping him at bay. 

Days went by as he continued getting worse and worse. And then weeks flitted past and Muzan’s condition was as shit as ever. More so, if that was possible. A month passed into this, and Kokushibo told Muzan that if he didn’t somehow get better soon, he might die. And when they came to this conclusion, Muzan felt absolute dread. He couldn’t believe that this would happen. He couldn’t. Fucking. Believe it. 

He didn’t want to believe it. He didn’t want to die. It sounded childish, of course, but death was his biggest fear. He merely feared Yoriichi because Yoriichi could bring him death. He feared the sun simply because it could kill him. He couldn’t bear the fact he might die.

So, he asked Kokushibo for something. One night, one more unbearable night of pain, he’d been laying down in the silence, uncomfortable. Then, casually, he said, “Kokushibo? I may have been thinking and…”

Kokushibo shook his head. “If this is another ‘I think this is just an effect,’ then I don’t want to hear it.”

“No, I was thinking something. Maybe you could turn me into a demon or something? Like, I can make you into the demon king and you can give me your blood and turn me into a demon? I mean, give me your blood for more strength? As I’ve done for you and the other 12 kizuki?” Muzan suggested.

Kokushibo nodded slowly. “It could work.. but it would be painful for the both of us, no?”

“Would you mind? It’ll go away fast. And I’ve been in pain these past few weeks, I honestly don’t care about myself,” Muzan said, sighing. 

“True. Alright then. I’ll get you some food first, though.”

When Kokushibo came back, the two demons ate in silence, both absorbed in their own thoughts. When they finished, they didn’t do anything, unsure where to go from here. Then, quietly, Kokushibo said, “Can I..”—he hesitated for a beat—”kiss you? In case this doesn’t work.. I don’t want.. I want to be with you, actually, and not just worried and getting you things to help you with your sickness. I want to do this before anything happens. In case anything happens. If anything happens. You understand?”

Muzan nodded, definitely understanding. “Of course. But you better lean down here because I don’t want this ‘moment’ to be me dying in pain.”

Kokushibo chuckled softly, though it wasn’t particularily funny. “I will.” He leaned down, peppering Muzan’s face and neck with kisses until the smaller demon was a whimpering mess. 

He stopped, eventually, letting Muzan breathe for a minute. “Kokushibo?”

“Yes?” he hummed, caressing his Master’s face.

“I know I’m shit at affectionate things, but I love you, you know that, right?” Muzan murmured, leaning into Kokushibo’s touch. 

“Mhm,” his boyfriend smiled. “I love you too.” 

Muzan flushed, still not used to any of this. “Thank you. For taking care of me.”

Kokushibo nodded. “I wouldn’t leave you even if my life depended on staying away.”

They were silent, the comfort of each other spreading through their bodies. Eventually, Muzan said, “How do you want me to transfer my blood to you?”

“What will hurt least for you?”

“Probably if you use my finger. Or..” Muzan paused, a sly smile creeping up his face. “From my neck or my lip?” 

Kokushibo laughed. “Alright. So I’ll kiss you while taking your blood like a vampire?” he said, amused.

“Sure, why not?” the demon lord said. 

“Okay, okay.” Kokushibo paused, brushing Muzan’s hair away from his forehead. “Love you, Muzan,” he mumbled. 

“Love you too,” Muzan said, sighing. 

The Uppermoon pressed his lips to Muzan’s neck, carefully biting slowly down, making sure to make only a thin line which would be easier to regenerate. Muzan closed his eyes, concentrating on making sure Kokushibo got through with this. 

When Kokushibo moved up, feeling that that was all he needed to take in, he noticed how pale Muzan looked. But before he could ask if he was alright, pain shot through his body and he doubled over. He clutched his arms around himself, his mouth wide in a silent scream. 

But then the pain was over and he was panting heavily, sweating. He looked up to see Muzan still lying there, looking more sick than before. 

Kokushibo felt the opposite Muzan did, though. He felt alive. Powerful. Like he could do anything.

But instead, he leaned down closer to his lover and whispered urgently, “Are you okay?”

“Kokushibo,” Muzan said, his voice like sandpaper. “Blood. Give me.. some of your blood.”

“Right, right,” Kokushibo murmured, panicking. He used his fingernail to slice his palm and he dripped some of his blood in Muzan’s mouth carefully.

He watched his boyfriend swallow, and waited. The waiting was painstakingly slow and fear pressed Kokushibo’s insides into a tight ball. His body felt like lead as he watched and waited. Nothing happened.

This wasn’t what was supposed to happen, was it? When you were given blood, usually the effects started immediately. What had gone wrong? Kokushibo tried again, slipping more of his blood into Muzan’s mouth. 

“Please, please work,” he said, his mind and heart racing. He must’ve done something wrong. What had he done wrong?!

Muzan shook his head wearily. “Koku..shi.. Koku.. I don’t think it’s going to work,” he mumbled, growing paler (is that a word?) by the second. 

“It will work! It has to work,” Kokushibo insisted. As much as he’d known that it might not, he had hoped with all his might that it would. 

Muzan shook his head. “No, I can feel it..” He coughed rather violently, blood spilling from his mouth. “Kokushibo.. You’ll be the demon.. lord now.. Continue on.. the work I’ve done.. Don’t let it go to waste,” he said, his eyes meeting the Uppermoon’s. No, the demon king’s. Kokushibo was the demon lord now. 

Kokushibo nodded weakly. “I will. But please don’t die. Not yet. Please,” he begged. 

“It’s not my choice.. anymore,” Muzan mumbled, closing his eyes. 

“No, no! Don’t close your eyes, no, wait,” Kokushibo said urgently, putting his hands onto Muzan’s chest. What was it humans did? Something about chest compressions?? But this was different, no? All that could save Muzan was regeneration.. 

He desperately tried again to get his blood into Muzan, trying, and failing, to save him. Muzan coughed again, blood staining his clothes. 

“Kokushibo, it’s no use,” he said, his eyes still closed. 

“It has to work!” Kokushibo insisted. 

“It won’t.” 

The words were harsh and cut into Kokushibo like a knife. He knew it wouldn’t, but the fact that Muzan had lost all hope made him feel suddenly hopeless as well. The words were so certain, so clear, and true. Unbearably true.

Kokushibo’s hands left Muzan’s chest and went to cup his face. “Fine,” he said, all desperation drained from him. “Then.. goodbye, Muzan.”

Muzan nodded slowly, painfully. “Yes, goodbye.” 

“I still love you,” Kokushibo murmured. “I won’t stop.”

Muzan’s mouth twitched into a smile. “Such a flirt,” he said, sighing deeply. “I won’t stop loving you either, I promise.”

And then he was gone. His chest stopped moving in it’s uneven sort of breaths and the pale gradiant of his skin slowly went deathly white. Kokushibo didn’t know how long he sat there, holding Muzan’s face in his hands, but it was long enough for the touch of his fallen lover to become cold. Ice cold. 

He retracted himself when he realized that and stared at the body. Then, he realized, it was starting to disintigrate. He wondered, for a split second, why it hadn’t disintigrated earlier. This was as Muzan had died first as a human then left the earth as a demon. Kokushibo’s hand clutched the slowly disintigrating arm of Muzan’s, until there was nothing but cloth in his grip.

He held onto it tightly, fearing that if he let this go, it would turn to dust as well and he would have nothing left of him. Kokushibo’s upper body shook in sharp, shuddery breaths. He was trying not to cry. But try as he might, tears rolled down his cheeks.

He hadn’t cried in a long time. Centuries. He never had a reason to. He’d never felt pain that lasted, never pitied anyone to the point of tears. In fact, he’d never felt much emotion since he became a demon. And then Muzan came along and made him feel. Feel happy, for once. 

Made him cry. Ugly, shaky sobs that ripped through his body. He buried his face in his hands and screamed. How could the world take Muzan from him? How could it take the one person who had ever made him feel? 

The floor trembled and he looked up. Then, he realized with a start, it was himself who was trembling. From fear, anger, and sadness. Sorrow. He’d never felt that before. When his mother died, he had been disappointed. But he’d never really been close to her. To anyone. 

When Yoriichi died, he’d felt only powerful. And powerless. But never grief. Never anything like this. He’d never felt this sort of internal pain that teared him from inside out. His hands, still clutching tightly the bloody cloth Muzan had worn the day he died. Today. 

The day Kokushibo became the demon lord, failed to save the previous one, and lost his lover all at once. The day he felt. Felt nothing but pain. 

He looked at the clothes and buried his face into it, uncaring it was covered in blood. The blood would disappear soon. Gone with Muzan. Gone. 

The word vibrated inside his mind, bouncing off the walls in his head and repeating over and over and over. Gone. Muzan was gone. Forever.

And it was all Kokushibo’s fault. He had failed his master, his boyfriend, the person dearest to him. He had failed and Muzan had died and it was all. His. Fault.

{Word count: 2600}

Well now that lightheartening oneshot is done 😊

@yolo_jay32 Finishedd :33!! 

yk gotta thank you for requesting this bc i doubt I would’ve ever finished it if you didn’t 😭

ALSO THE PICTURE I USED FOR THIS IS SO SILLY AHOIDAKMS (okay bye you chaotic demons-)