In a classroom at Central Pennsylvania College in Harrisburg， Pennsylvania， USA.

“Sky-Shattering Energy Cannon!“

John Booth， sitting at the back of the classroom， suddenly sprang up from his seat， slapping his hand on the desk with a force that made the surface ring out loudly.

Teacher Jenny， who was writing on the blackboard， instantly halted her chalk， paused for a moment， then furrowed her brows and turned to look at John Booth.

The classroom fell into a sudden， complete silence， with all the students' gazes instantly focused on John Booth， as if the air had solidified.

John Booth was also taken aback， standing there dazed， his eyes vacant.

An atmosphere of embarrassment filled the classroom， and John Booth instinctively lowered his head， his feet unconsciously scraping the soles of his shoes.

His deskmate， unable to contain his amusement， covered his mouth to stifle a giggle， then slightly raised his head， his lips forming the words clearly:“Sky-Shattering Energy Cannon.“

John Booth did not retort; instead， he hung his head even lower.

“John Booth!“ Teacher Jenny suddenly raised her voice， which pierced through the air like a sharp sword， directly targeting John Booth's eardrum.

John Booth instinctively looked up just in time to see a piece of chalk flying towards him!

With a slight tilt of his head， he dodged it nimbly. The chalk grazed his gray hair tips and hit the wall next to the podium with a “crack“ sound.

The students in the classroom could no longer contain themselves and burst into laughter.

“How dare you dodge?“ Teacher Jenny was so furious that her face turned pale， her eyes almost shooting flames，“Sleeping is one thing， but making such a commotion， do you think I don't exist? Get out and stand outside as punishment!“

“Yes...“ With his head down， John Booth walked towards the back door and left.

The laughter of his classmates continued to echo behind him， but John Booth pursed his lips， his mind completely elsewhere.

Stepping out of the classroom， John Booth leaned against the wall， his gaze aimlessly fixed on the portrait in front of him， with the sound of a few low winds in his ears.

The sunlight inside the classroom was dim， and the walls and floor seemed somewhat dull under the yellowish light， as if everything was frozen in an unknown temporal tunnel， and he， standing on this land， felt an unprecedented sense of isolation.

In his mind， that extreme sensation of explosion surged again like a tidal wave.

The battle on Pluto， that massive meteorite， the impact that tore through the starry sky in an instant... everything was so real， as if it were only yesterday.

But now， he had returned to his eighteen-year-old self， back to Earth， and to this classroom that was both familiar and unfamiliar.

“Didn't I die?“ John Booth whispered to himself， his mind in turmoil， his heart rate accelerating， every nerve in his body screaming about the illogical reality.

A case of literary theft: this tale is not rightfully on Amazon; if you see it, report the violation.

He remembered the explosion on Pluto， how he seemed to be pulled into endless darkness at that moment， unable to see or hear anything.

And then... then， he stood here， back in the year he was eighteen.

Looking around， the classroom matched his memory perfectly， with portraits of Donald Trump hanging on the white walls of the hallway， seemingly staring at him， and he at them， followed by George Washington， Abraham Lincoln...

Inside the classroom， the messy desks and piles of books also silently told John Booth that all of this was real. Whether it was the sunlight slanting in through the window or the stuffy air in front of him， everything seemed so familiar， as if nothing had ever changed.

“How could this be...“ John Booth took a deep breath， trying to force himself to calm down and recall everything he knew.

In that future era， technology had become extremely advanced， and breakthroughs in time and space travel had long been achieved. However， this did not mean that time travel could bring him back to the past. According to his knowledge， the principle of time and space travel only allowed objects to be spatially transported within the same timeline， and it was impossible to reverse time.

Thus， he naturally concluded that he had not traveled to another time and space， but... had returned to the past， to the year he was eighteen.

All the reasoning in his mind seemed to offer him no comfort， instead deepening his confusion. The destruction of Pluto， the hostility of the Star Emperor， he remembered it all clearly， but what about this world， what is it like now?

Suddenly， a wave of dizziness washed over John Booth， and he couldn't help but lean against the wall. His mind was like a fog， with memories from the past and the current scene intermingling， causing a headache.

He closed his eyes tightly， trying to break free from the sense of unfamiliarity， but no matter what， he couldn't find a rational explanation for his existence.

“This isn't a dream， right?“ he muttered to himself， his gaze weakly sweeping over his classmates who were still busy in the classroom.

Sunlight streamed in through the window， warm and bright， as if it was the only reality he could grasp at the moment.

He placed his palm under the sunlight， trying to absorb the warmth to gather strength， but it only shone on his hand， bringing waves of warmth.

He began to doubt whether this was an illusion or a trick of fate. Was it possible that after his death， he had traveled to a different space-time， yet still bound to a reality that didn't belong to him? Or had he entered some kind of reset cycle， trapped within an unresolved enchantment?

Gradually， John Booth's thoughts began to drift away from reality， delving into a profound contemplation of the nature of time and life.

“What is this?“ John Booth's voice was almost swallowed by his own despair， deep and filled with helplessness.

“Ring ring ring~~~~~~“

Accompanying the sound of the school bell， John Booth's thoughts were pulled back to reality.

As Teacher Jenny said，“Alright， that's all for today， see you tomorrow.“

The students replied in unison，“Have a nice day， see you tomorrow.“

“Tap! Tap! Tap!“ Teacher Jenny walked past John Booth in her high heels， not even casting a glance back at him.

John Booth frowned slightly， contemplating his bewildering situation， when suddenly he felt a heavy pat on his shoulder.

“Hahaha， Brother Cannon is awake now， that slap of yours gave me a start，“ said the voice， patting his shoulder again.

John Booth turned his head abruptly and saw a chubby boy， grinning with a sense of triumph.

The boy was slightly overweight， with a round face and a pair of bright eyes. The smile on his face was as mischievous as his expression， looking very pleased with himself.

He was John Booth's deskmate for three years of high school and his best friend， Joris Brown.

Joris patted his own stomach， chuckling，“That roar of yours when you woke up， I almost thought the teacher was going to be scared silly by you.“

Looking at his chubby face， John Booth was in a daze. In his previous life， they had planned to go online after class， but an asteroid came crashing down， turning Joris into a pancake and costing John a leg， leading to his later recruitment and awakening as a warrior.

“Joris.“

“Why are you talking like old Lady Curie next door， so indecisive? Just spit it out!“

“What is the date and time now?“

“Are you even listening to yourself?“

“Answer me!“

“Alright， it's 5:46 PM， December 6， 2024. We're going online later， and you said you're treating. What's up， John? Is there something else you want to ask?“

“Let's not go online.“

“The hell you say! You're messing with me!“

“Follow me.“ Leaving this， John Booth headed straight for the school gate.

“Well， you better be taking me to go online，“ Joris said， and he followed along.