Immediately after, Mitsuba added a karma to this peasant's childhood called "wants to become a blacksmith when grown up."
Thus, the peasant's physique became even stronger, especially the muscles in his arms and waist.
But there was still no ornate samurai sword on the peasant's person.
The karma Mitsuba initially created still hadn't manifested at this point.
Because his wealth was insufficient, logically speaking, he still didn't possess the capability to forge an ornate samurai sword.
Therefore, Mitsuba supplemented the final crucial karma for this peasant—
[At age twenty, his outstanding forging skills were appreciated by a certain daimyo, and he was commissioned to forge blades for this daimyo for decades. Finally, in his old age, he returned to his hometown in glory carrying an ornate samurai sword gifted by said daimyo.]
At this point, all necessary conditions had been satisfied, and the logical chain was completely intact.
Finally, an ornate samurai sword that Mitsuba wanted to see appeared in this peasant's hands.
Yes, just like that, suddenly, it appeared out of thin air.
Through this entire multi-stage testing process, Mitsuba also thoroughly figured out the effects of her new ability.
But what she hadn't explained before was that in this experiment, the wealth initially buried in the backyard of the peasant's home wasn't actually created out of thin air—she had secretly gone to bury it herself...
This was the greatest limitation of her new ability—
All her karma overwrites of reality had to be built upon things that already existed in reality.
There originally wasn't any wealth in the backyard of the peasant's home, so no matter how Mitsuba overwrote the karma at the start, she couldn't change his family circumstances at birth.
But as long as she buried the corresponding wealth in the backyard, the peasant's family circumstances were immediately successfully overwritten.
Secondly, the daimyo in the karma "appreciated by a daimyo" that Mitsuba created for this peasant wasn't created out of thin air either.
This daimyo was a real person who actually existed in reality, and was indeed a daimyo with a strong fondness for blade forging.
Therefore, Mitsuba could smoothly create the karma of "appreciated by a daimyo" for the peasant.
Of course, this karma didn't affect this daimyo. For this daimyo in reality, he still didn't know this peasant.
But within Mitsuba's domain, this peasant already knew this daimyo and had been forging blades for him for decades.
Her modifications within her own domain relied on the reality of the outside world, yet were independent of true reality.
Finally and most importantly, the reason this peasant could smoothly become a blacksmith was entirely because Mitsuba had previously studied up extensively on forging techniques.
It was only on the premise that she herself already possessed extremely high forging knowledge that she could smoothly modify this peasant into a blacksmith.
This was also the second major limitation of Mitsuba's new ability—
Within her domain, the limit of what she could overwrite entirely depended on her own cognition. To what extent her knowledge reached, she could twist reality to that extent.
Of course, these many limitations only applied to karma overwrites of reality.
If it was purely overwriting thoughts, things would be much simpler.
After all, human thought was the most variable thing in this world. Any overwrite of it could be easily achieved without restrictions.
Just like the peasant—Mitsuba made him become a blacksmith, and he obediently worked hard in that direction.
And that Demon Slayer just now—Mitsuba made him go chop Doma, and he went without hesitation.
Thought is just like this. It seems indestructible, yet breaks at the slightest touch.
So, under so many limitations, what other uses could Mitsuba's new ability serve besides influencing enemies' thoughts in battle?
The answer was simple: creating "causes of death."
If in the future Mitsuba encountered some ridiculously powerful Demon Slayer, for this heaven-sent fierce person who had never suffered any fatal injuries in his life.
Mitsuba could completely lay out plans in advance, thereby forcibly creating a fatal "cause" for him, and finally induce this "cause" to forcibly trigger his "death."
What? You say you've never suffered such an injury before?
Hey! That's not up to you. In my domain, if I say you've done it, then you've done it! What I say goes here! Even the gods have to stand aside!
She would no longer be constrained by the condition that "there must be cause for there to be effect."
Under this new ability of Karmic Overwrite, Mitsuba could now freely create karma within the scope of her cognition!
Truly achieving—in the literal sense—if I want you to die, you must die!
That's just how unreasonable it was.
The only regrettable point was that her new ability similarly couldn't be used on demons...
After all, demons had no threads of karma on them.
"Hey hey~ Holy Maiden, wake up quick~ Stop sitting here in a daze~ I've already taken care of all those Demon Slayers~"
Her drifting consciousness was gradually called back. Mitsuba came to her senses and saw Doma standing before her, still holding an unfinished female thigh in his hands.
Inside the base behind him was a scene of carnage, corpses strewn everywhere.
Although Doma appeared quite frivolous, he was unexpectedly meticulous in battle against Demon Slayers.
Inside the base, he hadn't left a single survivor. All the Demon Slayers here tonight were confirmed dead.
Facing Doma's smiling expression as he looked at her, seemingly expecting something, Mitsuba first blinked in confusion, then suddenly realized and immediately praised with a smile:
"You did very well! Knight Doma!"
"Thank you, Holy Maiden! Protecting you is the duty I should fulfill as a knight!"
Receiving Mitsuba's praise, Doma immediately put on a happy expression on his face while handing the thigh in his hand to Mitsuba.
"By the way, Holy Maiden, would you like some too? This young lady's meat is quite chewy, you know?"
"Eww~ So bloody and creepy, take it far away..."
Waving her hand in disgust, Mitsuba immediately stood up and said:
"Alright, since the mission is complete, that's it for tonight. I'm going back. If there's anything in the future, come call me again..."
Yes, Mitsuba was preparing to return.
Although she had already decided to properly observe this creature named Doma before her, Mitsuba had no intention of staying by Doma's side constantly.
After all, she wasn't some perverted peeping tom. Observing properly when there was business was enough; there was no need to stare at someone all day long...
But at this moment, Doma suddenly asked:
"Eh? Holy Maiden is going back already? Aren't you going to visit the entertainment district with me?"
"The entertainment district?"
"That's right, that's right~ There are many fresh and delicious pretty girls there. Holy Maiden, don't you really want to go see?"
Recalling her experience visiting the entertainment district nearly a hundred years ago, Mitsuba slowly nodded.
"Sure, let's go take a look together."
She was also quite curious whether humans had developed any interesting new ways to play after so much time had passed...
...
(Timeline slightly adjusted, moving some original plot events a bit earlier)