Night had fallen.
Daisy had already instructed her subordinates to return and bring all their people here, though the journey would likely take about a week.
Now, with the expected increase in population, Kai was busy drafting blueprints—designing housing and preparing spaces to ensure everyone would be comfortable.
He planned to build mini apartment-style cabins , with each unit accommodating around five people .
Design Concept:
- Modular/Cabin-Style with high ceilings + natural ventilation (cross-airflow design).
- Two stories (to save space).
- Capacity: 30 people → 10 units (max 5 people per unit).
Shared Facilities:
- Kitchen + Pantry (communal cooking & storage).
- Dining/Lounge Area (shared meals & relaxation).
- Bathrooms/Showers (at least 4–5 units for hygiene).
- Storage Room (for gear/equipment—useful if guards or researchers stay).
This should be good... I'm not sure if earthquakes will happen or not, but this design should at least hold up. I don't want to set expectations too high."
"This world looks beautiful on the surface, just like my old one, but deep underground? It's hellishly hot."
"Take, for example, the upper layer of the Earth—called the mantle. Its temperature averages around 1,000°C. And the part closer to the core? Around 3,700°C. Meanwhile, the Earth's core itself exceeds 5,000°C."
"At these temperatures, even solid rock melts. It's easy to imagine molten liquid rock swirling and shifting beneath us since it's already liquefied."
"The hot molten rock rises to cool, and once cooled, it sinks back down to be reheated. This cycle continues endlessly. This convection activity primarily occurs in the lithosphere, between 35-100 km beneath the Earth's surface."
"This is where tectonic plates reside—constantly shifting, colliding, and pulling apart in a never-ending natural 'royal rumble.' Over time, the built-up pressure is eventually released as earthquakes."
"Scientifically, there are different types of fault movements: strike-slip, dip-slip, reverse faults, and more. Let's take strike-slip, for example—each type has its own distinct motion, but my focus here is strike-slip."
"In a strike-slip fault, sections of the Earth's crust grind horizontally past each other. This exact phenomenon occurred in my world's region ."
"Even though that area was far from the Ring of Fire, earthquakes aren't solely caused by it. The Earth's restless movements extend beyond any single zone."
"Condolences to those who lost their lives."
Knock knock!!
"Come in—the door's unlocked."
Daisy appeared holding a cup of water.
"Hello, Father. What are you doing?"
"Nothing much, just working on blueprints for your people's new homes."
She peered at the blueprint, squinting at the sketches and strange symbols she couldn't decipher.
"What's this? It looks like houses, but what are these weird marks? I can't understand them."
Kai suddenly remembered—this world had no formal education. They didn't even know alphabets or numbers.
"Ah, it's nothing, my child. These are just called numbers and letters."
"Haha! Funny enough, in my world, most people hated learning these."
Daisy's curiosity deepened.
"Why would anyone hate them, Father?"
"Well... in my world, this system was called mathematics. It was ordinary—until a man named Al-Khwarizmi changed everything."
"If you want to know, he's the reason all of humanity had to study *algebra*. Born around 780 AD in Persia..."
"Back then, Persia was under the Abbasid Caliphate. He migrated to a city called Baghdad to study at the House of Wisdom."
"That place was where the greatest minds gathered—translating, analyzing, and advancing human knowledge."
"As usual, he studied hard... then began refining mathematical concepts that revolutionized everything."
"He built a system, a structured method to solve mathematical problems—ones that even the cleverest arithmetic tricks of that era couldn't crack."
"That structure was called Al-Jabr... later known as Algebra."
Daisy listened intently. Though she didn't fully grasp it, her interest was sparked.
"Dad... can I become someone like that?"
Kai looked down at her, now sitting in his lap.
"Of course you can. I'll teach you. I'll make you the smartest person in this world... after me."
He rubbed his nose smugly.
Without realizing it, a voice from the bed responded.
"Yeah... yeah... after me too."
Rose, who had been asleep on the bed, also woke up and refused to back down.
"Maybe you should continue the story—it doesn't just end there, right? Tell us what happened after he introduced algebra."
Kai continued his story.
"But that was only the beginning. He didn't just stop at mathematics—he was also involved in astronomy, geography, and even the calendar. He delved into the science of numbers, those complicated calculations, to standardize computations all over the world.
Later, he wrote a book, which was carried from place to place before finally reaching Europe. A few centuries later, the numbers he worked on became the global standard, eventually replacing Roman numerals."
"He created a book—I forget its name—but it wasn't just any book. It was actually a blueprint for solving equations systematically. Without his contributions, advanced math—the kind that gave rise to engineering, cryptography, and computer algorithms—might have been different. Maybe it would have taken much longer for scholars to discover those things."
"Maybe Daisy doesn't understand all that, but without him, perhaps my world wouldn't be as advanced as it is now. In short, the modern world wouldn't exist, and I wouldn't be able to advance this new world."
"And that's why his books were translated into Latin in the 12th century—and boom! Europe leaped ahead in mathematics and science. European tongues might have struggled with Arabic, but 'Al-Khwarizmi' was slowly Latinized into 'Algorithmi,' giving birth to the word 'algorithm.'"
"That's how he became the game-changer of the world, bringing ideas that transcended time... and also a game-changer that students struggle to study.
Hahahahaha!
The two of them clapped after listening to Kai's story.
"Daisy, you can sleep here with Rose. I still have work to do."
He then left the house and went out to get some fresh air.
"Sigh... Even if I failed at being a lover, I hope I can at least be a good brother and father. I don't know what my past self did, but you were really a piece of shit—leaving kids with me, and who knows how many wives you married. Were they all old women? Will I end up single in this world too?"