I undid the Runedek enchantments. Normally, this would be impossible; once any enchantment is done, it cannot be undone. However, as the one who did the enchanting, I can actually get rid of the enchantments. Of course, this is simply because I messed up a bit. It's a bit of a pain in the ass to get rid of the enchantments, even though I'm able to do it since I'm the one who did the Runedek enchanting.
I then melted down the mithral and adamantite alloy. Once it was melted, I used magic to reshape it into a human skeleton, reconfiguring the enchantments. This time, there were no mistakes in the Runedek enchantments. Next, I began taking out muscles from the countless soldier corpses I had stored up. I used fusion magic to fuse a bunch of different muscles together, then attached the muscles to the skeleton using magic. Each muscle I attached to the skeleton was essentially about a hundred different humans' worth of muscles that had been fused together.
Fortunately, I had an anatomy book handy, so I knew where each muscle went. Although I still messed up twenty times, I got there in the end. Even the smallest ligament muscles were naturally fused with about a hundred different people's ligament muscles to ensure the muscles would be a lot stronger than just one person's. After all, most of the corpses were F-ranked. Even if some were from enhanced individuals, that definitely strengthened their bodies and made them more resilient, but the quality was still lacking. Hence, I needed to fuse the muscles of several people together to make the muscles more durable.
After I was done with that, I began adding skin. Again, I simply took the skin off all the corpses, fused it together, and then used magic to attach it over the corpse, creating the appearance of a human being. This would be commonly referred to as a flesh golem. Of course, you could not make one with living people, only with utilizing corpses, and even F-ranks and enhanced corpses wouldn't be enough. After all, the current body would only last a few months. I began adding some more Runedek enchantments to further enhance the flesh golem.
I used a different type of fusion magic, one designed to fuse the properties of three different materials. My Twilight Staff. Most likely, the more advanced version of this magic allows the fusion of multiple materials beyond the limit of three. Of course, I used the muscles and skin as a base. The Runedek enchantments, along with the fusion of numerous muscles together, were to make it strong enough so it didn't instantly break during this process. I fused the mithral and adamantite alloy into the skin and muscles.
Adamantite had poor mana conductivity, almost making it virtually impossible to enchant. You can't use Runedek enchantments on adamantite. Even the United States cheated by having only the bullet part made of adamantite, with the shells made of ordinary metals. The shell was the part that was enchanted, and it simply applied the enchantment to the bullet part of the casing when it was fired. Mithral, on the other hand, is probably a little bit stronger than steel in terms of durability, but its mana conductivity is one of the most conductive substances in the universe. There are few things with mana conductivity at the same level or higher.
The fusion into the muscles was successful. The muscles and skin were used as the base material, and the mithral and adamantite alloy were fused into them successfully. Of course, this would not work if the materials were too incompatible. Fortunately, since muscles are essentially from a living entity and are highly adaptable, they are compatible with most things.
Finally, the body was done. It didn't look like a stitched-together corpse due to the fact that I used magic. However, the body didn't have any gender, and even the face was quite lacking. This would change when it was possessed by my fairy familiar. After all, the corpse currently possessing it doesn't look anything like the corpse of the person. This is because the spirit has the ability to transform the body into their appearance. If this body is strong enough, it might even let the spirit physically incarnate. Spirits can possess a body or another physical object to use as a medium, enabling them to stay inside the material realm for much longer as they'll be able to recover their mana by doing so, rather than constantly losing mana until they eventually have to return to the spirit realm.
The problem is the strength the body needs in order to contain them. Powerful spirits, even using a body, have a time limit since the body will eventually disintegrate, unable to contain their power for a long time.
f ranked body would not have been enough, but it was enhanced. Even then, it will last a few months at most, and that's only because she's not actually utilizing any of her actual power. She's suppressing it. If she stops suppressing it, the body wouldn't even last an hour.