"Confirm teleportation to the main world, One Punch Man?"
"Notice. The current world's time flow has been adjusted. You may return at any time."
After the notification appeared, Sol silently confirmed the command.
Confirm teleportation.
Before Yuji Itadori and the others could take in the scenery of the Infinity Castle, the world around them shifted once again.
The scenery blurred before reforming into an enormous hall filled with advanced technology.
Silver-white metal walls reflected a cold glow beneath a towering dome, where soft light illuminated the vast interior. In the distance, countless platforms and elevated walkways stretched across the structure, while uniformed personnel moved about in an orderly fashion.
What caught their attention even more was that many of those walking through the hall were clearly not human.
Some possessed compound eyes and insect-like limbs. Others had bodies that resembled stone or polished metal. A few even floated through the air. Despite their appearances, everyone interacted naturally, as though such diversity were perfectly ordinary.
"W, where are we?!" Nobara's eyes widened as she instinctively raised her hammer, cautiously watching the non-human figures. "Cursed Spirits? No... there's no cursed energy."
Megumi Fushiguro immediately shifted into a defensive stance, prepared to summon his shikigami at a moment's notice.
"They don't feel like cursed spirits, but they're not ordinary humans either. This place is... different."
It resembled neither a barrier nor a Domain Expansion.
Yuji simply stared in amazement as a three-meter-tall bronze-skinned giant casually walked past carrying an enormous metal pillar. Despite its immense weight, the floor didn't even shake.
"That's incredible! It's like we're on the set of a science fiction movie!"
Gojo Satoru lowered his blindfold.
His Six Eyes processed the overwhelming amount of information flooding in from the unfamiliar environment at astonishing speed.
"Incredible..." he murmured, genuine surprise replacing his usual carefree smile. "The energy systems, the lifeforms... everything here is completely different from our world."
His gaze settled on Sol.
"This isn't ordinary spatial transportation. We've crossed into an entirely different world, haven't we?"
Sol met his eyes and gave a small nod.
"Yes. This is another world."
The simple confirmation struck the three students like lightning.
Another world.
It really was another world.
Yuji, Megumi, and Nobara stood frozen, struggling to process something so completely beyond common sense.
Just then, brisk footsteps echoed through the hall.
They had thought Sol was joking before.
He wasn't.
He had truly brought them to another world.
"Hey! What are you all doing standing around in the middle of the office area? You're blocking everyone!"
A sharp, impatient female voice interrupted their thoughts.
Everyone turned.
A petite young woman with curly green hair strode toward them.
She wore a black dress with long boots, and although her expression radiated obvious irritation, the overwhelming pressure surrounding her made it impossible to ignore her presence.
It was Tatsumaki.
She stopped a few steps away.
Her emerald eyes swept over the three unfamiliar students before lingering briefly on Gojo Satoru.
Her brows knit together.
"Hm? New faces? Which branch were you transferred from? Where are your documents?"
Then her gaze shifted past them and landed on Sol.
For a split second, the irritation on her face disappeared.
Surprise flashed across her eyes before she quickly hid it behind her usual proud expression.
"Hmph. So you're finally back."
She folded her arms and lifted her chin, attempting to look down on him despite having to tilt her head upward to meet his eyes.
"You disappear for months, then the moment you return you're blocking the office area, and you've brought back a group of strange people."
Her words remained sharp, but beneath the familiar irritation was an almost imperceptible hint of relief.
Sol looked at the petite esper.
A trace of warmth flickered through his dark red eyes before disappearing.
"It's been a while, Tatsumaki."
He gestured toward the others.
"These are my classmates."
After a brief pause, he added,
"I brought them here for special training."
"Special training?"
Tatsumaki raised an eyebrow.
Her emerald eyes carefully examined Yuji, Megumi, and Nobara before returning to Sol.
"And why does special training require coming all the way to headquarters?"
She paused before continuing.
"Besides, they all look pretty fragile."
Yuji instinctively puffed out his chest.
He had no idea what this headquarters actually was, but being called fragile still irritated him.
Megumi remained expressionless, though his vigilant eyes continued scanning the surroundings.
Nobara glared back without hesitation, but sensing Tatsumaki's overwhelming presence and noticing Sol's relaxed attitude, she wisely kept her mouth shut.
Gojo, meanwhile, simply observed everything around him with obvious curiosity.
Completely accustomed to Tatsumaki's blunt personality, Sol answered calmly.
"The facilities here are sufficient, and the environment is suitable."
After a brief pause, he added,
"They also need to see a broader world."
Tatsumaki clicked her tongue but seemed willing to accept the explanation.
Her gaze shifted back to Gojo, lingering noticeably longer.
"This masked guy is your friend too?"
She narrowed her eyes.
"His aura is... interesting."
Gojo immediately flashed his trademark grin and waved cheerfully.
"Yo, little girl! I'm Gojo Satoru, Sol's new teacher. Nice to meet you."
A vein instantly appeared on Tatsumaki's forehead.
"Who are you calling little?"
Her eyes narrowed dangerously before she looked back at Sol.
"And teacher?"
She sounded genuinely puzzled.
"Do you actually need someone teaching you?"
"..."
Sol considered the question for a moment before answering,
"It's more of an exchange of knowledge."