Simultaneous time travel: But our system is out of sync!

"Tanjiro!"

"Get up and keep running!"

"Don't lie on the ground like a slug."

"Are you even a man?"

Halfway up the mountain, not far from the hunter's house, Lin Bei was training Tanjiro.

Although he had yang energy to enhance his strength, Lin Bei did not slack off in the slightest.

He will not give up any way to become stronger, even methods like training that require years of perseverance to see results.

Moreover, sufficient training can also help him become familiar with his sudden increase in strength, allowing him to have more precise control over his body.

By this time, he had already completed the other training exercises with Tanjiro and was now on the final ten-kilometer run.

To enhance the training effect, he even carried a stone on his back.

Despite this, he was still full of energy and showed no signs of exhaustion.

Unlike the energetic Lin Bei, Tanjiro was now almost exhausted.

After tripping over a dead branch, he lay on the ground panting, unable to get up for a long time.

Looking at Tanjiro at this moment, Lin Bei, though still sharp-tongued,

But deep down, he was still very satisfied with Tanjiro.

After all, Tanjiro is still just a teenager.

Although he often carried homemade charcoal up and down the mountain, he had never done such intense training before.

Lin Bei originally thought that Tanjiro would give up and beg for mercy halfway through his training.

But he underestimated Tanjiro's persistence.

Although Tanjiro repeatedly refused before the training began,

But once he actually started training, no matter how tired or painful the process was, Tanjiro never begged for mercy.

At most, I'll rest for a while, then get up and continue training.

Now, completely exhausted, he can no longer get up.

Looking at Tanjiro like this, Lin Bei was actually quite satisfied.

For someone to have persisted this far on their first training session, especially one of such high intensity, is truly remarkable.

Lin Bei felt that today's training could actually end early, so he prepared to take Tanjiro back to rest.

But when Lin Bei arrived at Tanjiro's side, ready to take him back in his nearly collapsed state...

But then they heard Tanjiro's words, though faint as a mosquito's buzz, they were incredibly firm.

"Tanjiro, you can't fall."

"You need to stand up."

"You need to become stronger."

"Only by becoming stronger can you protect Mi Douzi and Brother Lin Bei."

"You've already lost them once; you can't afford to lose them a second time."

"For my family..."

"family……"

Then Lin Bei watched as Tanjiro, muttering about his family, struggled to his feet and began running the rest of the way.

However, upon closer inspection, Lin Bei saw that although Tanjiro had gotten up from the ground, his face was deathly pale, and he could not even open his eyes, acting entirely on instinct.

Seeing Tanjiro in this state, Lin Bei instinctively wanted to stop him.

After all, this was already at the point of near collapse due to overexertion.

If this continues, there is a high possibility that his life will be in danger.

But seeing the determination on Tanjiro's face, Lin Bei forcibly stopped himself from moving.

Having died once, he knew that this was both a crisis and an opportunity for Tanjiro.

He was able to persevere and finish the rest of the journey, overcoming this hurdle.

Tanjiro will be able to be reborn from the ashes, and embark on the journey from that ignorant and naive boy to becoming a qualified warrior.

As for danger, Lin Bei looked at the dozen or so strands of yang energy accumulated in the yang energy furnace. As long as he had the yang energy in hand, even if Tanjiro really died suddenly, he could pull him back from the brink of death.

"Huff..."

"Huff..."

With each step Tanjiro took, a violent panting sound, like bellows being pulled, came from his trachea and lungs, making one worry that his lungs might explode.

However, thanks to Tanji's habit of carrying charcoal up and down the mountain, although he hadn't undergone systematic and high-intensity training, he still had some basic skills and his physical condition wasn't bad.

In addition, there is strong willpower to support it.

Tanjiro persevered and completed the rest of the journey. Finally, after Lin Bei said, "Tanjiro, you have completed your mission for today," he collapsed completely into Lin Bei's arms.

The instant Tanjiro collapsed, Lin Bei carried him and ran at breakneck speed to a nearby hut.

Then, the yang energy that had been prepared beforehand was transferred into Tanjiro's body.

The moment the yang energy entered Tanjiro's body, Lin Bei was able to clearly see Tanjiro's condition through the yang energy.

Respiratory system damage, rhabdomyolysis, bone and soft tissue damage, myocardial and vascular damage...

At this moment, Tanjiro's body was covered with damage caused by the sudden strenuous exercise.

Any one of these factors could lead to death or permanent disability for an ordinary person.

However, under the nourishment of Yang energy, these injuries began to heal at a visible speed.

In the blink of an eye, Tanjiro's face went from pale to rosy, and even his breathing became more relaxed.

In Tanjiro's consciousness, who had fainted.

He first felt pain all over his body.

It was as if he was about to die.

Then the world drifted further and further away from him.

He seemed to see his deceased mother and younger siblings.

They were waving at him.

However, just as he was about to follow, a warm energy suddenly entered his body.

While relieving his pain, it also pulled him back to his original world.

Then he saw Mi Douzi squatting beside him with a worried look on her face, and Lin Bei standing next to him.

"You're awake! How do you feel?"

Hearing Lin Bei's words, Tanjiro subconsciously clenched his fist.

But the next moment.

"Sizzle—"

The power starts in the fist and travels all the way to the arm.

His muscles bulged so much that they tore a hole in the shirt on his arm.

Tanjiro stood up from the ground, feeling incredulously the power he had never experienced before.

And those muscles are simply impossible for a normal person to build in a day.

I felt that his strength was equivalent to two or three times my own.

He looked at Lin Bei with immense excitement.

"this!"

"Is this still me?!"

"Brother Lin Bei, your training plan is surprisingly effective."

"Just one training session has made me so powerful."

At this point, Tanjiro could no longer contain his excitement.

He exerted force again.

Then came a series of fine threads and the sound of fabric tearing.

Tanjiro's muscles began to spread from his arms to his entire body.

Then, in a short period of time, the person was completely covered in muscles, and the originally thin body expanded to become big and thick.

Feeling the bulging muscles all over his body and the power contained within them, Tanjiro performed a bodybuilding pose typical of a muscular man.

Then he turned to Lin Bei with a now very rugged face and a steady voice, and said, "Brother Lin, I feel like I can kill a bull with one punch now."