Two Sides [My Ratiorine compilation]

Doctor's Favorite

[slight AU and HC, I try my best to not make them too OOC]
[Not based from the picture above, just for illustration]

Kakavasha slung his backpack over his shoulder, wearing casual student attire instead of the luxurious, shimmering clothes he was accustomed to. 

This was his first day attending Dr. Ratio’s class after leaving the IPC. 

He stepped into the grand college campus. 

The grounds were vast and expansive—so much so that anyone lingering outside for less than five minutes past the start of class could easily find themselves late. 

Kakavasha ignored the stares from others as he made his way through the campus. 

Entering the cool classroom, he felt a slight flutter of nervousness—it was his first time attending school. At IPC, his education had been limited to private lessons. 

He chose a seat in the middle row, not too far back and not too close to the front. From this position, he could see his doctor—now his teacher—perfectly from his vantage point.

"Everyone settle down. Let's begin the lesson"

The handsome and intelect teacher from Inteligencia Guild. Everyone already knows him just by hearing his voice. Make them needs to be extra alert because once they had not focused, a Fierce chalk would thrown to their head until bruise.

Dr. Ratio open his book, start lecturing.

The class goes well. Kakavasha can understand it quite well too.

Dr. Ratio calling some of students to answer a question which is the common nightmare for them.

"Alex,"

"How can the principle of entropy in thermodynamics be used to explain the evolution of the universe since the Big Bang?"

Alex startled a bit when hearing Dr. Ratio call his name, he sigh, scratching his head.

"Ermm...Easy, Professor! Entropy increased because the universe wanted to chill out. After the Big Bang, all the particles decided to throw a cosmic party, spreading everywhere, and now they’re just enjoying a ‘universal vacation’ with no rules"

Dr. Ratio glare, "wrong!" his chalk already ambush Alex's head.

"Sigh... Any other want to explain?" He rubs his temples. Irritated.

Then the new student start raise his hand.

Dr. Ratio look at Kakavasha who smile while raise his hand. He was a bit sceptical, prepare if this blondie would make his headache more.

"Yes, Kakavasha?"

He clear his throat,
"So... the principle of entropy in thermodynamics states that the entropy of a system tends to increase in natural processes, reflecting a tendency toward disorder. After the Big Bang, the universe expanded and cooled, causing energy to be distributed more evenly. Entropy increased over time, signifying the transition from a highly ordered state (concentrated mass-energy) to a more disordered state, as observed in the current cosmic structure"

Dr. Ratio looks fascinated a bit.

"Hmm... How you make more simple explanation to make your friends here understand?"

Kakavasha smiles, nods. He thinks a moment.

"Hmm... Right, for example... Think of the universe after the Big Bang as a brand-new deck of cards, perfectly ordered. Over time, the cards get shuffled repeatedly. Every shuffle represents the universe expanding and energy spreading out. The more the cards are shuffled, the harder it is to return to the original perfect order — this is how entropy works."