Perfect experiments (kny)

Chapter 1. Discovery

"His getting overpowered..." Kaika mumbled, he couldn't believe it. This slayer had beaten Muzan, even Tamayo was shocked and her facial expression had changed from despair to hope.

She wanted him dead, Kaika however didn't have any problems with Muzan but he did not like that his freedom was stripped away. It hindered his search, his own dedicated mission to 'break the boundaries of nature.'

As Kaika was stuck in his thoughts, Muzan had split into thousands of pieces. Tamayo cursed that Muzan wasn't killed and awaited for the slayer to end her, Kaika looked sympathetic.

However, the slayer knelt down and sheathed his blade. "I won't kill you, i saw your eyes. They were filled with hope. I can tell you wanted him dead." The slayer wearing weird earrings spoke.

"You won't kill us?" Kaika asked, the slayer nodded and requested something that made both him and Tamayo confused for a moment.

"I want both of you to help me defeat that demon that escaped. I know his the progenitor and in his weakened state i don't think he has control over both of you now." The slayer told them before standing up. "Now go. Before other slayers arrive."

With those words both Tamayo and Kaika left, now having a new goal. Tamayo's being to eliminate Muzan while Kaika had the same goal but as well as breaking boundaries of nature.

Years gone by and both Tamayo and Kaika had gone their own separate paths, not liking each other's ideals of how they were going to defeat Muzan. Tamayo's being medical treatment and studying of curses, Kaika's being using animals, other demons and insects to create a uber weapon.

However, Kaika soon realised he can't just use the flora and fauna around him or the demons he captured. He must go into straight danger to acquire the perfect blood samples needed to create his monsters.

And luckily for him, he had heard a demon group talking about Muzan's own demon group. The twelve Kizuki. This was it, all he needed was a blood sample from either the upper ranks or lower ranks, preferably upper ranks.

Year 1899 - at a remote village near asakura

Akaza was walking around the forest, looking for a blue spider lily. After Muzan realised he could die, he had instructed his demon moons to find this mysterious flower, believing it to be something that could cure his only weakness, sunlight.

Kaika hid behind a tree but Akaza had sensed him. "Whoever you are, come out and show yourself. Your cowardice makes me sick to the core." Akaza spat with venom laced tones, he really didn't like weak people even worse, people who can't even fight.

Kaika revealed himself, his frail body and weak limbs indicated that he was a weak demon. "I knew it, your a weak demon. Give me a reason why i shouldn't kill you right here and now." Akaza asked.

"W-Well, you see. I am but a mere demon looking to...power up my creations. A-and i know y-you...like fighting so...i asked if i could get a blood sample for you." Kaika stuttered, he was risking and fearing for his life.

"Interesting, how about a deal. If i gave you my blood, and you do what you claim your doing. I want to see this creation in a few years time. And if your creation doesn't die i will leave you alone. However if it does, you die. Deal?" Akaza asked, Kaika immediately nodded and grabbed a syringe and had gotten a few blood samples. After that, he and Akaza went on their own ways.

'Holy fucking shit.' Kaika cursed in his mind, that was probably the most horrifying thing he had done for the past centuries he has been alive.

He looked at the blood samples and smiled menacingly.

"Akaza, i won't disappoint."