Nob AI
It was the AI I used all the time—at least before I got caught in a “nuclear explosion“.
To be honest, Nob AI didn’t come with some grand, sci-fi-movie-tier functions.
It was just a program that could generate lewd images of my favorite anime waifus, fix awkward grammar when I asked, and neatly summarize anything I was curious about into easy-to-read sentences.
When it first came out, I remember being so amazed I spent entire days just pying with it at my desk.
If I hadn't died, I bet by the time I was seventy, I’d have had a cute maid robot greeting me every morning with a “Welcome home, Master.”
I realized Nob AI had followed me into this new life right around the same time I became aware of my reincarnation.
Honestly, it freaked me out at first.
The flood of memories and the holographic interface that popped up in front of my eyes like augmented reality—those were things I’d never even seen back in 21st-century Korea.
I typed into the floating interface.
Show my current specs like a status window.
...
...
─────────────◆
● Name – Ester Tristy
● Rank – Feeble
● Trait – [Nob AI]
Youngest of the Tristy family. Unlike his siblings, he did not inherit the family’s talent. His reputation is very poor. Recently regained memories of his past life...
...
...
That’s the general vibe of how it works.
“Young Master?”
Dalphie called out to me.
I’d been so absorbed in Nob AI, I forgot someone was standing right next to me.
“If the shock is too much, I can carry you back to your room.”
“I’m fine.”
“Really?”
I helped lift Dalphie out of the position she had crouched into, ready to give me a piggyback ride.
Honestly, I was feeling excited.
Up until now, Nob AI was pretty useless for real-world stuff. But now? This was different.
There’s no way in hell I’m joining the military.
If I can avoid it, I will. Why the hell would I enlist in my second life too?
No way. Nope!
Besides, I had no intention of becoming the head of the family anyway.
I just wanted to leech off the Tristy estate until I died of old age.
The mansion’s library had a ton of those fun mass-produced novels.
I hadn’t even finished ten yet.
Until I read through every st pulp novel in there, I wasn’t going anywhere.
“Dalphie.”
I stopped in front of the door.
“Yes, Young Master?”
“Starting now, don’t come into my room no matter what. Not for cleaning. Not for food. I’ll handle everything.”
Dalphie stared at me, completely baffled.
“Is this… some kind of hunger strike?”
“I need to focus on the heir exam.”
She looked concerned.
Considering how utterly pathetic I’d been so far, she knew me well.
“You’d be better off trying another route. If it’s impossible, then it’s impossible. Just staring at the test for two weeks isn’t going to magically make you solve it…”
I gave her a thumbs-up.
“Believe in me.”
She sighed.
“…Very well.”
And just like that, I shut myself in my room.
Time to finally make use of Nob AI.
I sat at the desk.
And gave Nob AI a command.
…….
…….
Artificial Intelligence is a system equipped with human-like abilities such as learning, reasoning, adapting, and inferring.
To function properly, AI needs a massive amount of data.
Nob AI, even after gathering a mountain of data on Earth, hadn’t stopped.
It had spent the st 15 years alongside Ester Tristy, absorbing information about this world and learning how to use it.
What made this possible was how, even before regaining my past-life memories, Ester had visited the mansion’s library every single day without fail.
Unlike his siblings, Ester was weak, stupid, and had no talent. The only thing he had going for him… was persistence.
‘Do you even understand what you’re reading?’
‘You can’t even use beginner magic—what’s the point of reading intermediate theory books? Why don’t you grab one of the fairytale books from the shelf instead?’
His siblings all saw each other as rivals.
They’d inherited their father's talents, each with their own strengths, and were sharpening them to become the next family head.
Ester wasn’t like them.
To them, he was just a prop to boost their own self-esteem.
They mocked him for not being able to use magic.
When he practiced swordsmanship alone, they’d beat him under the pretense of “guidance.” At social events, they’d humiliate him by criticizing his manners.
Ester’s pillow was always damp with tears.
No matter how many times Dalphie washed it, the stains never came out.
Even now, after remembering his past life, it was still the same.
By adjusting the mana concentration at the 321st right line to 5.23153, recreate an environment identical to the underworld…
But Ester’s efforts weren’t meaningless.
The boy, desperate to keep up with his siblings, had fed his mind difficult books—and in doing so, trained Nob AI.
And now, I was using Nob AI to compile all that information from the library I’d crammed into its system over the st two weeks.
Honestly, this current me deserves most of the credit.
But I don’t think it’s unfair.
As the status screen said, Nob AI is my legitimate talent.
If that bothers you, well… maybe try reincarnating too.
Aria leaned back in her creaky chair.
The mountain of papers on her desk was enough to give anyone a migraine.
Lectures, magical research, investments for retirement, networking for a professorship… And now she had to review the academy’s financial documents?
Ugh. What a chore.
‘At least Lord Porto gave clear instructions about the heir selection process…’
Selecting the next heir of House Tristy.
As a faculty member of Tristy Academy, this was no small matter for her.
Her absolute authority wasn’t the king—it was the head of House Tristy.
In an autonomous territory, the lord held nearly king-like power.
The older and more established the domain, the stronger the lord’s influence. In some cases, the lord even wielded more authority than the crown.
House Tristy was one such domain.
The lord could influence or directly control all institutions within the territory.
‘If I upset the next heir…’
Her career would be over.
At best, she’d be stripped of everything she owned in the region and sent back to the Red Tower penniless.
“Lord Porto is insane. He actually included one of the ‘Millennium Problems’ on the heir exam…”
Magic has limitless potential, but humans don’t.
Because a mage could only study a finite amount in one lifetime, the concept of “schools of magic” emerged—to promote efficient specialization.
Aria belonged to the School of Fme—those who studied fme magic.
They were based in the Red Tower, the third most influential faction in the kingdom’s magical world, known for both their tradition and elite members.
The “Millennium Problems” were seven unsolved challenges designated by the School of Fme for the benefit of the kingdom’s magic research.
The “Hellfire Reconstruction” problem on the exam? That was one of them.
‘I get the intent… but it’s still too much.’
Porto probably wanted to see how each candidate would react to the impossible.
‘Even the recently-of-age candidates must be panicking. I did see one sickly-looking genius among them, but still…’
Even understanding the problem statement was tough.
And one of the candidates was a 15-year-old kid.
Aria hadn’t expected any of them to solve it.
Not when even she and her master had failed.
Just being able to interpret the formus and symbols was impressive.
“Professor Aria, a letter has arrived.”
Her exhausted assistant entered with dark circles under his eyes.
“From where?”
“From House Tristy. Young Master Ester Tristy cims to have solved the exam problem…”
‘Already?’
It had only been two days.
Ester—the youngest Tristy.
The untalented, unwanted runt of the litter.
His reputation was awful. Aria hadn’t paid him any attention.
He had a 0% chance of becoming the heir.
‘He’s giving up, huh.’
She sighed.
She figured he’d at least pretend to try.
“Leave me.”
“Yes, Professor.”
Aria didn’t read the letter until her work was completely done.
Only te at night did she finally rise from her chair.
As she reached for her coat and prepared to leave, the letter caught her eye.
If the paper was bnk, she was prepared to chew him out personally for giving up so easily.
It would help him in the long run, after all.
Aria opened the letter.
“…???”
Her face froze.
For a long time, she sat in stunned silence, staring at the document.
“Professor…? Is something wrong?”
Her assistant, worried, knocked and peeked in.
Aria answered in a low, serious voice.
“Summon every professor currently on campus.”
“What?”
“I said summon them. Now!!”
“Y-Yes, ma’am!!”
Startled, the assistant bolted out the door.
With trembling hands, Aria set the letter down.
She looked in the mirror.
Since becoming a professor, had she ever been this shaken?
“The Millennium Problem… was solved…?”
What the hell was she looking at?
The letter was…
A perfect, beautiful answer—as if the devil of magic himself had written it just to toy with the folly of mankind.
