Chapter 108: I Can Kill Him

The Butterfly Mansion is the medical facility of the Demon Slayer Corps, providing treatment and rehabilitation for injured members, with the nursing staff mostly composed of members who lack swordsmanship talent.

"Looks like I need to be careful with poisons and the like from now on!" Jon realized that he must find a way to enhance his physical abilities, otherwise, if he were poisoned in his normal human form again, it would be troublesome.

However, he had never considered learning the breathing techniques of the Demon Slayer Corps; after all, they were of no use to him. If he ever needed to learn, he could simply devour Kokushibo's memories, the Upper Moon One, and learn everything, since all the breathing techniques of the Demon Slayer Corps originated from Yoriichi Tsugikuni, Kokushibo's brother.

Despite still feeling some soreness, Jon didn't want to continue lying around and wasting time. After all, his time in this world was limited, and earning more penalty points through slaying demons was the real task at hand.

He got out of bed and walked out of the room.

Outside was a spacious hall where some of the injured were undergoing rehabilitation training.

"Why are you out? You're not supposed to move yet, go back and lie down!"

Kanzaki Aoi, who was directing the training, immediately ran over and used her small hands to push Jon back into the room.

Kanzaki Aoi was also a swordsman who had passed the final selection, so her strength was not inferior to Jon's when she was not in his Spirit of Vengeance form.

"Wait... wait, you don't understand, I can't waste time here!" Jon clung to the door frame, preventing her from pushing him back into the room.

"You're so weak now that even I can push you, how are you going to slay demons!" Kanzaki Aoi pushed hard against Jon.

"Aoi, don't be rude to our guest."

Just then, a gentle voice rang out, and Kanzaki Aoi immediately stopped, then turned to look.

Shinobu and her sister, Kanae, walked in from outside, and Kanzaki Aoi immediately said respectfully, "Kanae-san!"

Afterward, Kanae smiled at Jon and said, "Jon-san, please forgive her, Aoi is just worried about your recovery~"

Jon scratched his head and replied, "It's okay, I don't mind, and I'm thankful you saved me. But I'm already feeling much better now, could I... have my clothes back first?"

Kanae was taken aback, then asked, "Do you have some urgent matter? If you don't mind, you can rest here a bit longer, especially since the demon poison has just been cleared from your body."

"No need, these injuries won't affect me more." Jon responded.

"If you say so," Kanae sighed, then she patted Shinobu's head, "My little sister has been wanting to discuss demon-slaying techniques with you."

"Sister~!" Shinobu's face turned slightly red, and she stamped her foot in annoyance.

Seeing Shinobu's demeanor, Jon couldn't help but smile. He remembered that during the original storyline, Shinobu was already the Insect Pillar, and because Kanae often told her she looked pretty when she smiled, she always kept a smile. This temperamental and somewhat tsundere side of Shinobu was rare to see.

Then Shinobu turned to Jon and said, "However, if Jon-san is in a hurry to leave because he wants to slay demons, there's really no need!"

"What do you mean...?" Jon asked.

"I've seen that Jon-san has killed Lower Moons Four in just a few days, so I assume you're mainly hunting the Twelve Moon. Our Demon Slayer Corps has a very comprehensive information network. Instead of aimlessly searching for targets outside, you might as well recover here at the Butterfly Mansion while we help you find information about the Twelve Moon." Shinobu suggested.

Jon thought about it; the information network of the Demon Slayer Corps was indeed much stronger than his own. Although his philosophy differed from that of the Demon Slayer Corps, they were essentially both aiming to slay demons, so being temporary allies was indeed no problem.

"Alright, I think that's a good suggestion." After some thought, Jon replied, "However... as I said before, I don't really have any demon-slaying techniques. I was just an ordinary person, and my power was gained unintentionally, so I can't really teach you my abilities."

"Well, that's an infortune~" Kanae said with an enthusiastic smile, "I'll have Aoi tidy up your room. During this time, you can freely visit the Butterfly Mansion, don't be shy, treat this place like your own home~"

"But speaking of which, although it might be too much to ask, have you ever considered joining the Demon Slayer Corps?" Kanae asked again.

"Join the Demon Slayer Corps? I am sorry but I can't." Jon said with a smile, "There's no need. As I said, my philosophy is completely different from that of the Demon Slayer Corps. If I really joined, you might not welcome my methods, and besides, joining would mean I'd have to follow orders and run around, which isn't suitable for me. It's better to maintain a cooperative relationship."

"Is that so..." Kanae still smiled, but her expression showed some regret, "That's really too bad. If Jon were willing to join the Demon Slayer Corps, you would definitely boost our combat power~"

"Actually, during the time you were unconscious, I discussed with the master. Although your techniques is excessively powerful, your physical condition seems to be much weaker compared to our swordsmen. We considered perhaps teaching you our breathing techniques to compensate for your weaknesses, of course, it would be even better if you were willing to join the Demon Slayer Corps." Kanae said warmly.

Jon was taken aback. Even if he didn't join the Demon Slayer Corps, they were willing to teach him the breathing techniques? Their generosity made him feel somewhat embarrassed!

In fact, Jon could directly absorb the memories of Kokushibo to learn the breathing techniques without needing to study specifically with the Demon Slayer Corps. Moreover, Jon only had one month left, and there was definitely not enough time to learn quickly.

Therefore, Jon had to decline, "Kanae-san, to tell you the truth, I can only stay here for about a month, and it's completely impossible to learn a whole set of breathing techniques in a month. Besides, I want to kill the Twelve Moon Demons and even Muzan Kibutsuji during this period, so I appreciate your kindness."

Kanae was somewhat astonished, "Jon-san, are you sure? Moreover, to kill Muzan within a month is very unrealistic. After all, not even one of our Demon Slayer Corps swordsmen has seen Muzan. He won't easily reveal himself, and Muzan, after all, is a demon who has lived for over a thousand years, the progenitor of all demons. Probably nothing in this world can kill him except the sunlight!"

"I can kill him." Jon said with a smile, then opened his palm, where a flame ignited, "My ability is specifically designed to deal with those kinds of undying creatures!"

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(A/N: The new world after Demon Slayer is American Horror Stories!)