After leaving the treatment room, Xia Feng returned to the main house of the Butterfly Estate.
In the courtyard, Kanao was practicing swordsmanship seriously.
Just like the first day Xia Feng arrived.
Watching Kanao's focused expression, Xia Feng suddenly felt a sense of nostalgia.
He walked to the corridor, sat down on the wooden floor, and quietly watched her train.
At that moment, soft footsteps approached from behind.
Xia Feng turned his head and saw Shinobu Kocho walking over with a gentle smile.
"Kanao is adorable, isn't she? Sometimes I watch her practice for a long time too."
As she spoke, she walked over and sat down beside Xia Feng.
Feeling the warmth of the girl next to him, Xia Feng tensed slightly at first, but quickly relaxed.
He narrowed his eyes.
"Days like this are really nice."
"Wouldn't it be even better if there were more girls around?"
Shinobu asked with a smiling expression.
Xia Feng quickly shook his head.
"How could that be? I'm such an upright person!"
Shinobu looked at him with a half-smile that made Xia Feng break out in a cold sweat.
Just as Xia Feng began to feel nervous, Shinobu said:
"By the way, the Flame Hashira's crow came earlier. He said he's already preparing to depart."
Xia Feng nodded.
"Pretty decisive."
"As for me, I'll head over once Tanjiro finishes learning Total Concentration Constant."
Shinobu looked surprised.
"Total Concentration Constant… that's not easy to train. Is that little time really enough?"
Xia Feng smiled.
"If it's not enough, then he'll just have to work harder."
Seeing that smile, Shinobu blinked and silently offered Tanjiro a moment of sympathy.
That poor boy…
Being noticed by Xia Feng—was it good luck or bad luck?
For the next two days, Tanjiro experienced hell.
Under Xia Feng's instructions, medical staff followed Tanjiro at all times.
If they noticed him stop maintaining his breathing technique, they immediately hit him with wooden swords!
Butterfly Estate staff already worked in day and night shifts, so this arrangement was easy for them.
The one suffering, however, was Tanjiro.
After two days, his body was covered with bruises.
He spent every day looking like he was about to cry.
Despite the pain, he finally succeeded in mastering Total Concentration Constant ahead of schedule!
When Shinobu heard about his training speed, she was a bit surprised.
No wonder Xia Feng valued Tanjiro so much.
At this rate, becoming a Hashira-level swordsman was only a matter of time.
Thinking about that, Shinobu looked outside the window at Kanao, who was practicing swordsmanship.
Her own disciple couldn't fall behind Xia Feng's!
In the courtyard, Kanao suddenly shivered for no reason.
Half a day later, Xia Feng and Tanjiro arrived in the city.
Tanjiro carried Nezuko's box on his back while looking around excitedly.
Although it wasn't his first time in the city, everything still felt fresh to him.
Xia Feng had once felt something similar—but for the opposite reason.
To him, the world looked interesting because it was so backward.
After a while, however, the novelty wore off.
After all, this era was only about a hundred years behind modern times—nothing too shocking.
Soon they arrived at the train station.
There, a steam locomotive stood quietly.
On the front of the engine were the words:
"Mugen."
The Mugen Train.
Seeing the steam locomotive, Tanjiro's face flushed with excitement.
"Amazing… was this really built by humans?"
Xia Feng glanced through the materials he had received earlier and was a bit surprised himself.
He used to think steam locomotives were just old relics.
Aside from large cargo capacity, they didn't seem impressive.
But this bulky machine could actually reach speeds of over 80 km/h.
If pushed to the limit, it could even reach 120–130 km/h!
That speed was comparable to early diesel trains.
Xia Feng put the documents away and gained a new respect for the old machine.
He turned to Tanjiro.
"Tanjiro, hide your sword properly. This is a train station—there are lots of police around. If they see it, you'll be in trouble."
Tanjiro quickly shifted the sword behind his back, covering it with his wooden box and coat.
Then he looked at Xia Feng.
"Mr. Xia Feng, where's your sword?"
Of course, Xia Feng couldn't tell him it was inside his storage space.
"I hid it long ago. I've traveled all over—I've got experience."
As he said that, Xia Feng suddenly remembered the terrifying experience of subway security checks in his previous life.
Especially during major autumn festivals.
Just thinking about those security checks made him feel despair.
Seeing Xia Feng suddenly look gloomy, Tanjiro assumed he was recalling some profound past experience and felt deep admiration for him.
Soon they boarded the train.
Not long after, they found Rengoku Kyojuro.
He was enthusiastically eating a train bento.
"Delicious! Delicious!"
He loudly praised the food while eating.
Xia Feng looked at him with disgust.
"Hey, Big Eyes. You're from a noble family, right? Is that really your table manners?"
Hearing Xia Feng's voice, Rengoku immediately turned around.
"Mr. Xia Feng! You're here!"
"And Kamado boy—welcome!"
He continued eating as he spoke.
"This is really delicious!"
Xia Feng chuckled awkwardly.
"Well… that's impressive."
He and Tanjiro sat across from Rengoku.
Watching Rengoku eat with such passion, Tanjiro was amazed.
Xia Feng also grew curious and ordered a bento.
After a few bites, his eyes lit up.
Soon there were two people devouring bento boxes.
Before long, they had finished more than ten boxes, leaving the staff who collected the trash completely stunned.
After eating their fill, Xia Feng leaned back contentedly.
Evening was approaching, and the heavy meal made him feel sleepy.
Just then—
A sudden flash of awareness appeared in his mind.
The moment it appeared, all his drowsiness vanished.
He instantly realized what it was.
It was the effect of his Mental Protection ability.
Someone—
Was attacking his mind.
🌟 The story is already written… waiting to be unleashed.
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