Everyone gathered around, looking at the letter Kobayashi Itsuki had dug out of the pit, and fell into silence.
After a long while, Ohara Nanako tentatively whispered,
"If I'm not mistaken, the second year of tenshō was an ancient period about four hundred years ago, right?"
As a top student, Ohara Nanako's memory was very clear.
Nohara Hiroshi was silent for a moment, then suddenly ran to the bookshelf, pulled out a thick book, and began searching through it.
"If that's the case, then there must be a record here..."
After searching for a moment, Nohara Hiroshi indeed found some introductions and historical stories about the second year of tenshō in the book.
"Impossible!"
"What a joke, this child must be playing a prank, he must be hiding somewhere..."
Nohara Misae said in disbelief, unable to accept the idea of 'time travel'.
Although time travel existed in this era, it was ultimately only a story in anime novels.
But for it to actually happen in real life was still somewhat hard to accept.
"Mrs. Nohara, please don't worry."
Kobayashi Itsuki comforted Nohara Misae, saying, "If this were Shin-chan's prank, first of all, the paper wouldn't be in this dilapidated state."
The traces of history are the clearest.
Although perhaps due to the anime world, a piece of paper could be preserved for four hundred years.
But some historical traces still exist.
"Besides, a simple prank shouldn't involve me."
Kobayashi Itsuki's calm words made Nohara Misae calm down slightly, and she slumped into the chair as if all her strength had been drained.
Ohara Nanako looked at Kobayashi Itsuki in surprise, "Teacher Kobayashi, do you mean Shin-chan might have traveled back to the second year of tenshō..."
"Hmm, there is indeed that possibility, otherwise, there's no way to explain what this paper is about."
Kobayashi Itsuki nodded and said to them, there's no need to stick to too much logic in these kinds of matters.
Anyway, in the original work, the couple ultimately made the same choice themselves.
Now, he just needed to give it a slight push.
However, compared to these things, Kobayashi Itsuki might as well consider the plot of the original work more.
According to Kobayashi Itsuki's impression, this should be the theatrical version titled "Great Battle in the Warring States Period."
It tells the story of Shin-chan accidentally traveling back to the Warring States Period, the second year of tenshō, through this pit, and embarking on a series of adventures there.
Ultimately, he helped Kasuga Castle defeat the opposing forces and eventually returned to the modern era.
The box and letter in the pit were a plea for help left by Shin-chan, who was in the second year of tenshō, for the Nohara couple. The only difference was that, compared to the original, there was an extra name on it: Kobayashi Itsuki.
Perhaps for Nohara Shinnosuke, facing the chaotic situation of the Warring States Period, besides the unrealistic action kamen, only Kobayashi Itsuki, the "Martial Artist," could offer some help.
'Warring States Period, huh? It really sounds like a dangerous place...'
Four hundred years ago, it seemed very distant, but in Kobayashi Itsuki's impression, the wars of that era already involved more than just bows and swords; basic matchlock guns were already present.
On such a chaotic battlefield, any stray bullet or arrow could pose a threat.
Fortunately, he was no longer a defenseless ordinary person; with the enhancement of supernatural abilities, he still had the means to protect himself.
Thinking of this, a sense of anticipation rose in Kobayashi Itsuki's heart.
In the Warring States Period, it would be different from modern society.
His greatest gains so far were when he faced the Tamayomi clan.
If he went to the Warring States Period now, with his strength, wouldn't he just be casually farming treasure chests?
While Kobayashi Itsuki was contemplating, Nohara Hiroshi acted exceptionally decisively when faced with the fact that his son had traveled back to ancient times.
"No matter where Shin-chan went, whether it's the Warring States Period or the future."
"As his father, I must bring him home!"
Saying this, Nohara Hiroshi slammed the table and stood up, "Teacher Kobayashi, I beg you, Shin-chan insisted in his heart that he must inform you."
"If possible, please come with us to help Shin-chan!"
Seeing her husband say so, Nohara Misae also stood up and said, "Please, Teacher Kobayashi."
The couple stood up and bowed deeply to Kobayashi Itsuki.
Kobayashi Itsuki quickly stood up, "There's no need for this. Shin-chan is also my student. As a teacher, how could I just stand by and do nothing?"
"In that case, let's prepare well. After all, it's an unfamiliar place. As Shin-chan's letter said, put all the luggage in the car!"
"Understood, we'll go prepare now!"
Nohara Hiroshi nodded and said seriously.
"I also have some things to prepare. We'll meet back at home later."
"I'll help too!"
Ohara Nanako also said to the Nohara couple at this time.
"Okay, thank you, Nanako."
This was not the time for politeness, and the couple did not refuse Ohara Nanako's help.
Watching everyone busy preparing all sorts of things they might need, Kobayashi Itsuki also quickly left the Nohara Family Home.
Actually, there wasn't much to prepare.
After all, everything he needed was stored in the system. Saying he was preparing was just to subtly cover up so that it wouldn't be too conspicuous when he took things out.
Kobayashi Itsuki didn't go too far. After leaving the Nohara Family Home, he found an alley and rummaged through his system, pulling out a large black bag.
Then he stuffed a lot of things into the bag, such as the physics holy sword and many other miscellaneous items, all crammed inside.
"For now, it'll serve as doraemon's four-dimensional pocket!"
Kobayashi Itsuki patted the large black bag, deliberately lingered outside for a while longer, then picked it up and walked towards the Nohara Family Home.
Back at the Nohara Family Home, the couple and Ohara Nanako were still stuffing things into the car.
The entire trunk was already full, and they were still trying to cram more in.
"How are the preparations coming along?"
Kobayashi Itsuki returned with the bag and asked them.
"They're almost done."
Nohara Hiroshi wiped the sweat from his forehead and said to Kobayashi Itsuki.
"If the preparations are almost done, then let's go!"
"Shin-chan might already be getting impatient waiting for us."
"Okay! Let's go now!"
Seeing that the car was almost too full to hold anything else, Nohara Hiroshi didn't delay any longer.
"Misae, get in the car, let's go!"
"Coming!"
Nohara Hiroshi pulled open the car door and got into the driver's seat, while Nohara Misae sat in the passenger seat, holding Himawari-chan.