My Upgrades Are Invincible

The Love Hashira Mitsuri Kanroji excitedly waved at me as I gave my little greeting with the Mist Hashira likewise nodding absently as the fourteen-year-old talent stared into the sky. The rest of the Hashira were obviously either still stuck in their own thoughts at the possibility of me breaking the curse of the Ubuyashiki family and allowing the man they swore their loyalty to live more than twenty some odd years before the curse taking their life.

However, Gyomei Himejima, the stone Hashira walked forward and clapped a heavy hand onto my shoulder and although I didnt think he was actually trying to be heavy handed, I could feel the casual strength he used to pat my shoulder wouldn't be out of place on a level three or four back in Danmachi and could only bemoan he was born in this world where the supernatural was limited to weird swords, demons, and curses. "Thank you dearly Jake. The gratitude I will bear towards you should the master's bloodline lose its curse shall be repaid however I can."

Hearing his words, I knew for a fact that the man was basically my own should I actually be able to kill Muzan and free him from his trauma of losing several of the children he was raising at an orphanage when a demon attacked it and he literally beat said demon to death with his bare fucking hands.

"I do my best to fulfill my promise's and I know he will do the same because our goals currently align." I explained and then turned to Giyu who I had the most interactions with. "Giyu do you know the locations or movements of demons that use space related magic?" Seeing the groups not understanding what I meant by space magic, I explained like rooms flipping around or portals to weird dimension's opening up making them nod in understanding.

"Yes, there has been rumors of a series of doors opening in the sky and the remains people falling out of them in the middle of Kyoto and Tokyo and we think it's a famous demon named Nakime who has a fetish for killing famous singers and musicians, but we can never catch her when she flees into one of her doors when a Hashira comes after her." Giyu explained and I could see a number of the other Hashira grimacing at the mention of Nakime and I knew they likely failed to catch her.

"Alright so any other demons in the Kyoto/Tokyo area that may use that form of blood demon art?" I asked and got confirmation of a set of demon twins that liked to make tiny little pocket dimensions inside large puddles and just yank people inside to drown them but for whatever reason they allowed a few people to survive the experience and now they are known as Kappa's that haunt Kyoto's dark alleys.

Kyoto, Tokyo and Osaka were Japan's three largest cities but both Kyoto and Tokyo had something Osaka didnt, being with how Kyoto was so old and had so much mystery and superstitious people that demons could blend in, Then the demons could use the Suicide Forest near Tokyo to disguise where their victims' bodies went, with even the demon slayers basically agreeing that's where the dozen or so people that disappear a day go in Tokyo.

'Thats the reality of predators living within a target rich environment though...' I thought as I learned more about the weaker demons that lived in and around the bigger cities but as they gained strength, they typically moved away from the cities to go after smaller communities which they could wipe out entirely whereas the demon slayers had a decent force based in all the major cities so demons couldn't simply go wild and eat like an entire hotel worth of people without dying for sure.

"Alright I think I will take a quick trip towards Kyoto for a week or so, while Rengoku trains Tanjiro, and Takeo to try and get the sun breathing style working and after I get back I hope to work with all you Hashira to learn your breathing style." I saw a couple of the Hashira frowning at my presumptive words, so I gave them a lifeline.

"I won't be using your time or be diminishing your hard work for nothing as I am offering to enchant your swords with powerful poisons and a flame enchantment." I offered and it truly was not much of a loss to me as a single drop of Hestia's blood would allow a weapon to send large swathes of fire and I had more than five pints of Hestia's blood after taking little bits over the past few weeks and for the poisons... I had six hundred corpses of the Behemoths the adventurer army killed, and they gladly threw them all to me knowing with me sealing them away basically, they wouldn't be able to poison the land like the first behemoth literally poisoned the earth to the point where it became a toxic desert where death is so prevalent that an immortal undead flower grows there that will kill anyone who walks within a dozen meters of it.

"Will those magical weapons make us better at killing demons?" Gyomei asked me simply and I was getting that even if the damn weapons I gave him took his lifespan or something equally evil he would happily use them so long as he was able to kill Muzan in doing so.

With a solemn nod I answered. "Yes, they certainly will, though the magic will be very tiring to use for people who have not unlocked their own magical energy but with your peoples breathing style I wouldn't be surprised if you all don't have a bit of magic within you Hashira." Hearing how there was an obvious demerit to using the weapons if anything they looked more assured. I mean if someone offered you what amounted to a divine tool and said, 'Oh by the way this weapon will kill anyone you want once a day but it will knock you on your ass.' that would be much more assuring than someone giving the equivalent weapon and saying of 'yeah go hog wild there's no consequences just don't cut off your own feet when you are having so much fun buddy.'

I turned to the Insect Hashira Shinobu Kocho and arguably the best waifu in this universe. "If you don't mind, could you please supply me with a vast quantity of Wisteria so I can magically enhance it to then be able to work with my own poisons."

Shinobu blinked her limpid purple eyes in surprise and lightly smiled. "Oh, so you are a fellow connoisseur of the other side of medical arts as well."

"Well, some monsters carry extremely potent toxins and poisons are highly prevalent in several magical plants that I have seen or read about." I answered somewhat misleadingly as I didnt really have any experience with poisons other than the purple moths back in Danmachi and after dealing with those I was killing infant dragons and such so I was able to get decent antidotes to fuse and make stronger versions which made basically all the toxic monster's irrelevant and then I got my Pure Body skill makes it basically impossible for me to be poisoned by anything weaker than the original Behemoth probably.

"Oh, would you mind giving me a sample of some toxins in exchange for that Wisteria?" Shinobu asked playing up her cuteness.

Before I could answer an affirmation, the Wind Hashira cut me off. "Now that the pleasantries are cleared away, I want to fight you!" You know what... He reminds me of a more jaded Bakugo Katsuki and just like after mentioned dick bag he needs a firm ass whooping to learn who is the top dog in the room otherwise like a territorial Chihuahuas, it will seek to establish its dominance by rabidly attacking anything that moves.

"Alright Sanemi... Let's see how well the Wind Hashira flies..." I grinned menacingly and Giyu knew exactly what I planned and with a very uncharacteristic smile he jogged off to the side and out of the way.