残酷な意図 | 𝐂𝐑𝐔𝐄𝐋 𝐈𝐍𝐓𝐄𝐍𝐓𝐈𝐎𝐍𝐒
↳（ yandere kny x fem! reader ）
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➥ 𝐈𝐧 𝐰𝐡𝐢𝐜𝐡, a low-ranking demon of questionable origins captures the attention of the most powerful beings in the world all the while trying to find her brot...
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𝐂𝐡𝐚𝐩𝐭𝐞𝐫 𝐒𝐢𝐱𝐭𝐲 𝐎𝐧𝐞 ⎡ 𝑾𝒂𝒕𝒄𝒉𝒇𝒖𝒍 ⎦
꧁꧂
Kokushibo and (Y/N) stood opposite each other in the Infinity Fortress with Douma and Akaza on the sidelines, Muzan there as well to see the progress that she had made in the weeks after he had instructed her to train. He was itching to see what new powers she had unlocked whilst also wanting to engage her in battle against the Demon Slayers. More so, he just wanted to show them what a demon was truly capable of against measly humans.
"Focus," Kokushibo instructed (Y/N) as he faced her, his katana gripped harshly in his hand, watching her intently with those intense six eyes of his. "Focus your mind's eye on your opponent. Breathe in deeply. Let the air fill your lungs—let it circulate through your entire bloodstream."
(Y/N) did as she was told, focusing intently on the demon in front of her.
She didn't want any of this.
Then again, Muzan knew this, but he didn't think such wants were worthwhile.
She let out a slow breath.
After the weeks of intense training Kokushibo, Douma, and Akaza put her through, this was it. This was the final test to prove that she was worthy of her freedom again, even if it was just to track down Upper Moon Five and try to kill him. After all, Muzan could have just as easily summoned Upper Five there to the Infinity Fortress, but she presumed he wanted to make her work further for the position. Not that she minded, as doing so would give her exactly what she wanted.
Forcing her thoughts from her mind, not wanting to distract herself from the current situation, she opened her eyes to stare at Kokushibo. She knew that he wouldn't give her any moment to attack, and that he would be doing everything he could to keep her at bay while she in turn would try to do everything she could to strike him down.
It was simple.
But then again, she was against the second most powerful demon.
She could noticed the way his muscles contracted, noticed how his breathing was deep and even, and, for just one moment, noticed what lay beneath—almost as if she could see through him to his blood, muscles, and bones. Blinking rapidly, the image was gone just as fast as it had appeared.
"You saw it, didn't you?" Akaza questioned, his eyes flashing with barely restrained intrigue. "The Transparent World."
"I saw... inside of him," she mumbled, still trying to process this new information. "I saw his heart, his brain, his lungs... all of that."
"Kokushibo is the only one of my Upper Ranks who can access the Transparent World," Muzan smiled at (Y/N), the look filled with a twisted sort of pride for her—the sort of pride a monster would look at his subordinate with. "How commendable."
