When Daiki passed through the door he felt something connect automatically to his own soul like a thread which confused him and tried to find out the cause of such a feeling.
[Congratulations on clearing the final two floors of the extremely compressed main dungeon] The dungeon suddenly announced.
"What do you mean by main?" Daiki picked up on a detail that he himself didn't know about since as far as he knew all dungeons are pretty much called dungeons.
[Main Dungeons are unique dungeons that can never be found in other continents]
"The full differences between the main dungeons and plain dungeons" Daiki said while emitting his aura.
[There are currently seven main dungeons, they are all dungeons that gained intellect and can function without a dungeon master, Main Dungeons are supposed to be dungeons that will house either the virtue or sin series wielder since they are supposed to be the only ones that could remotely finish them, only one can be the master of a dungeon, so far only Daiki Nakimura have fulfilled the conditions yet at the same time haven't] The dungeon explained however instead of the voice that is hard to define whether it belonged to a boy or a girl, it now sounded more like a boy.
"What do you mean?" Daiki was confused about what the dungeon had been saying.
[The Devil Lord or Dungeon Master job is needed in order to take ownership of the dungeon and Daiki Nakimura doesn't fit any of the virtues or sin series] The dungeon core said but then Daiki went back to the top.
"I'm a Devil Lord you know" Daiki said.
[...]
"..."
[Then say so earlier, Master!!!!] this time the voice of the dungeon became that of a girl's which confused Daiki, wondering why it changed from gender neutral voice to that of a girl's.
[You look confused, this dungeon has two cores so that's why there are two of us] the boy? part of the dungeon explained while Daiki could only nod in understanding.
Daiki continued to follow the path then there he saw two swords resting on a pedestal one of them seems to be made out of sapphire while the other seems to be made out of ruby.
"So the dungeon cores are shaped like swords?" Daiki was quite confused about this fact as it just felt unnatural to see dungeon cores shaped as swords.
[Yes for us but in other dungeons we really don't know Master, Dungeon Cores are actually made out of objects that had absorbed a tremendous amount of mana, electricity, or chi but of course there is also the prerequisite of an object having the potential to hold tremendous amount of some type of energy in order for them to gain sentience but if not then those items would just turn to normal dungeon cores, weapons with an ego are the same but it can be acquired by either infusing it with a will or resentment] both of the swords shined as Daiki heard the voices.
Daiki took a look around the room and found faint drag marks that can only be made by a child going towards the blue sword while although faint decomposed bone marks could be traced.
"The blue one is a cursed sword, right" Daiki didn't ask, it was more like he just said it out loud in a whim.
The two swords shivered ones they heard Daiki say that sentence, it felt as if a incredibly dangerous existence had just descended and wanted to slaughter someone for no apparent reason.
Daiki grabbed the blue sword with cold eyes as it continued to tremble in fear while the red sword tried its best to rise from its pedestal to save the blue sword.
Once Daiki lifted the blue sword it had already resigned itself to face death head on once again yet nothing came... in fact it only felt the opposite, instead of killing intent it felt... safe.
[Master please don't do anything to her, she didn't do anything wr-] the red sword which continued to hum was shocked once it saw that the blue sword calmed down and is snuggling close to their master.
[??? wasn't this the part where I am supposed to be destroyed due to opposing our new master? it's supposed to be a touching scene, instead this happened, Master and sis the two of you are following the wrong script] the red sword wanted to complain out loud then out of nowhere Daiki set up a forge along with taking out ingots made out of either bones, scales, mythril, adamantite, and glaciarium however the purities and concentration of each ingot was so severe to the point that it made the red sword shiver in fear as with all of those items even the strongest main dungeon which are located at the coldest and hottest continents would pale in comparison if they are used against the item created from the materials that Daiki had casually thrown out of his storage.
"Are you ready?" Daiki asked the blue sword for confirmation as he knew that the blue sword was already nearing the end of its life, more specifically the ego possessing it.
[Yes Master] the blue sword chimed while Daiki grinned his teeth in frustration.
"You will be put into a slumber until I awaken my sin, are you fine with that?" Daiki asked while leaving out the fact that there is a chance that the same ego would be the one to awaken since the current ego is a resentment from a innocent girl dying due to persecution by humans which swore to protect them.
[I know master would do his best to bring me back] the blue sword said while Daiki sighed and started to melt the sword.
The red sword didn't do anything as it knew that the blue sword was already near its limit and this was the best possible outcome.
Once the blue sword had been melted fully he did the same to the other materials while pulling out all sorts of things from his storage as he continued to supply chi to the melted sword keeping it from escaping even the tiniest drop.
Once the minerals, bones, and scales were done smelting he casually poured all of them into a rectangular mold or that's what it would look like for the ones just looking not studying every single part of the process since Daiki was controlling which minerals, bones, or scales would go where like the middle section of the sword was made using bones from the Behemoth, Leviathan, and the gigantic dragon that he fought earlier. Normally those three wouldn't fuse together naturally so he had to use an incredibly dense Glaciarium which density could rival the total mass of the known universe in his previous life which was only possible due to him using that ingot to store all of his expended mana as a form of training. The bones used were half of the skulls, half of the spines, and half of the limbs.
The blade was made out of the adamantite as well as half of the ribcage of the aforementioned beasts, half of the total amount of their fangs, and lastly their scales while the mythril ingots were used as a nerve like system where Daiki can give mana or chi to the sword in order to change it's shape as long as the appropriate amount of mana is supplied and the mass is enough which meant that Daiki couldn't suddenly turn it into a small universe as it's mass wouldn't be enough.
Daiki suddenly whipped out colorless mana stones and gave those stones his mana but that wasn't enough as he also whipped out a abyss black ingot then started using it as a handle, nobody knew what this ingot was not even Daiki, as far as he knew it just showed up in his storage but he knows instinctively that this ingot would be the most crucial for the survival of the current ego. The sword's bottom has a round guard then just above it is a small groove which can make other swords stuck to it or defend against blows while the main blade of course thins out as it went to the tip the handle is black in color and looks comfortable to touch. Overall the sword has a light blue blade a guard that has an inner part of blue with the outer part as black, this weapon looks as if it was blessed by holy light however that same sword is still a cursed sword so as far as anyone is concerned nobody can wield it except for Daiki.
This whole forging process wasn't done in merely an hour but for three months straight without any rest and once it was done Daiki was awfully drained to the point that his vast ocean like amount of chi turned into a puddle but was recovering in a astronomical rate.
The red sword on the other hand already handed almost all of it's authority over the dungeon to the blue sword since he felt massively inferior yet at the same time happy for its twin.
"What is this red sword doing here?" Tatsumaki wondered as she picked it up then she noticed a groove splitting the sword down the middle so she tried to separate it from the blade towards the handle and to her surprise the sword had turned into a bow.
"Wow!!!" Tatsumaki shouted excitedly while the red sword was just confused since as far as it knew it was just an ordinary sword. Tatsumaki then changed it back and tried to do it in the opposite way and to her surprise it split into two daggers which really made the red sword confused.
[???] The red sword was so confused to the point that it didn't even have the mental power to communicate with Tatsumaki so it became Tatsumaki's possession without it even knowing.
Later down the line after Daiki had finished forging his sword he also reforged the red sword while also using a white ingot that Tatsumaki just happened to have, the two swords looked the same only the red sword became dark red as if blood was spilled on it while the black parts of the now light blue sword are white.
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[Twin Swords] (Incomplete)
-?????? ??????? ?????. The Twin Swords are currently incomplete that's why it's true names have not been given however the two are undoubtedly the sharpest and toughest swords. Currently only Daiki Nakimura is the only living being that can destroy the swords while only the force that can rival a small blackhole can destroy them.
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"Sorry my I'm not proficient enough with [God's Eye] to see any information besides their name and some info" Tatsumaki said as she clenched her hands in frustration but Daiki just hugged her to comfort her yet at the same time she could only worriedly look at the twin swords that can bring the world to chaos if they wanted to, thankfully they are currently dormant due to being melted and adopting to the new changes.