Beast of Calamity (old)

chapter 18

~3rd Pov~

Shinobu wasn't having a good time

"despite what you're normally taught, Demons aren't actually purely biological, hence their unnatural resistance to things like neurotoxin, acidity, durability and general ability to seemingly defy the laws of thermodynamics with thwir regeneration and strength, which is why while your poison might kill normal demons, any demon with the Sufficient Mystery would easily shrug it off, of course using mystical materials that are conceptually damaging to demons increases the potency as seen with the flower thing that you use to lethal degrees, it still won't be that effective should the demon gain enough mystery" explained the Strange demon to the two demon slayers tied up to a chair as he stood in front of a Black board, silly drawings of 'mystery', 'conceptual affinity', and 'interaction of logic and Mystery'

(A/n Kal-tsit Y/n lmao)

indeed, Shinobu wished to groan, she was confused at His point, that was easy to understand, why was he talking about it as if it was deeply complex

"then what should we do?" asked Kanae, looking at him in curiosity, indeed, they were in a classroom, as such, Kanae was curious, what did the demon wished to teach them?

"Simple, I'm teaching you two magecraft" Replied Y/n, creating a ruler with his flesh and slapping it on his hand, creating an intimidating noise

"Magewhat? are you trying to tell me that you can just ritual demons away?" asked Shinobu in confusion, as if Y/n had just grown several heads

"Magecraft, you two will become my students, of course, I'm not giving you my private research, but I'm gonna be turning the two of you into decent spellcasters" explained Y/n, looking at the two of then with a smile that definitely felt intimidating for the two in a comical way

"Dear, the materials you asked for are here" Called out Mukago, as she brought in a small crate, a smile on her face as she approached Y/n, before placing the crate on a nearby box

"ah, thank you Mukago, I really appreciate it" Thanked Y/n, Patting Mukago in the head, prompting a deep fluster out of Mukago, as her mind short circuited from the gesture

"ahem" Fake coughed Y/n, snapping everyone out of the situation, as he reached into the box, before taking out a small hammer, as with a snap of his fingers, the chains on Kanae fell off, as she stood up and stretched

"why are you only freeing her?!" asked Shinobu, squirming underneath the chains holding her

"can I trust you not to try and tear my throat out and interrupt the lesson?" asked Y/n with a teasing gaze

Shinobu glared at him, not that she wasn't before, but said nothing, knowing that she's not winning that debate

"anyways, Kanae-san, for now, my first job is to shatter your doubts on the existence of magecraft, and while I'd like shinobu to do this, she's more likely to stab me with it instead, I need Muzan dead, not a stab wound from a Black key knock-off" Y/n explained with a calm, teacherly smile, as a teacher-like glasses formed in front of his eyes as a joke, as from the box, he took out a cross guarded hilt that was purely made out of meta

"this is a Silver Key, a false imitation of a Church armament made from materials available to me, enhanced by magecraft" he stated as by placing a deeply miniscule amount of of prana into the hilt, a silver blade, reminiscent of a katana formed out of mana, as he placed a finger on the flat side of the blade

"and Magically made to be solar powered" added by Y/n as his fingertip that touched the blade charred, a sizzling noise audible to everyone, Causing Mukago to flinch, looking at Y/n in worry, before being calmed down by Y/n's assuring smile towards her, as he removed his fingertip, allowing it to heal, as he stopped putting prana into the hilt, causing the blade to shatter into motes of light, as he approached Kanae, as she looked at the hilt in confusion, it was made out of metal, that much she was sure of, with not even a pinch of flesh in it's design, yet how could it function so? for educated people like Kanae and Shinobu, this was highly confusing