The current Yoriichi Tsugikuni had already been expelled from the Demon Slayer Corps.
Because he had not completely killed Kibutsuji Muzan, and coupled with his brother Kokushibo's betrayal of the Demon Slayer Corps and joining the demon's side, which led to the death of this generation's Ubuyashiki family head, he was expelled from the Demon Slayer Corps.
Lin Che was very unhappy about this matter.
This generation of the Demon Slayer Corps was truly sickening.
Was Kibutsuji Muzan that easy to kill? Yoriichi Tsugikuni didn't intentionally let him go.
If it weren't for Yoriichi Tsugikuni severely injuring Kibutsuji Muzan, he wouldn't have hidden for a hundred years.
These hundred years of peace were brought by Yoriichi Tsugikuni.
Moreover, what did Kokushibo's betrayal of the Demon Slayer Corps have to do with him, Yoriichi Tsugikuni?
Yoriichi Tsugikuni selflessly contributed the Sun Breathing he created. How many Demon Slayer Corps members did this act save?
How much did the Demon Slayer Corps owe Yoriichi Tsugikuni?
Lin Che could be said to have no good feelings towards this generation of the Demon Slayer Corps.
A bunch of ungrateful fellows!
So he planned to take Yoriichi Tsugikuni directly. As for the demons of this era, he wouldn't care about them.
Let these demons fight to the death with the Demon Slayer Corps; it was just dog-eat-dog anyway!
Yoriichi Tsugikuni replied, "I'm not."
"That's perfect. You have no ties now, do you want to come with me to the future?" Lin Che asked with a smile.
"The future? Are you from the future?" Yoriichi Tsugikuni was surprised once again.
"That's right!" Lin Che nodded.
"No, I still have a mission to complete. I must kill Kibutsuji Muzan!" After the surprise, Yoriichi Tsugikuni still shook his head and refused.
"You're really stubborn. Ever since you injured Kibutsuji Muzan last time, he has completely hidden himself. He plans to come out after a hundred years, that is, after you die of old age. In this situation, how can you kill him?" Lin Che said with a helpless tap on his forehead.
"This... what should I do?" Yoriichi Tsugikuni was stunned after hearing Lin Che's words.
He didn't expect Kibutsuji Muzan to be so timid, hiding just because he was injured once.
Was this still the Demon King?
Was this his capacity?
"Demons have infinite lifespan, they can wait, but you can't, so come with me, go to the future and slay Kibutsuji Muzan!" Lin Che invited Yoriichi Tsugikuni again.
Yoriichi Tsugikuni pondered for a moment, and finally nodded in agreement, saying, "Okay, I agree!"
Ever since his family was killed by demons, betrayed by his brother, and expelled by the Demon Slayer Corps, he had no ties left in this world.
He and this world seemed incompatible.
Instead of staying here, it would be better to go to the future and help future generations slay Kibutsuji Muzan.
Presumably his brother, who had turned into a demon, was probably still alive.
"Very good, but there's no rush to go to the future now. We still have two things to do." Lin Che said to Yoriichi Tsugikuni with a smile.
"What things?" Yoriichi Tsugikuni asked curiously.
"Becoming stronger, and inheritance!" Lin Che held up two fingers.
In the original work, during the final battle in the Infinity Castle, Kibutsuji Muzan's displayed strength was simply heaven-defying.
It was clear that he had become stronger over these few hundred years!
Lin Che was worried that Yoriichi Tsugikuni wouldn't be a match, so he needed to give Yoriichi Tsugikuni some special training, and also give him a Blessing.
Secondly, he needed to find Tanjiro Kamado's ancestor, Sumiyoshi Kamado, and pass down Sun Breathing.
His use of the authority "Fairy Corridor" to return to the past and take Yoriichi Tsugikuni could not change the established reality; it could only create a parallel timeline with a different developmental direction.
To ensure that the future of this parallel time-space can also completely eliminate demons, Sun Breathing must be passed down.
Although Yoriichi Tsugikuni didn't quite understand the two things Lin Che mentioned, he didn't ask further.
Next, Lin Che asked Hestia for a group red envelope and bestowed a Blessing upon Yoriichi Tsugikuni.
Then came the oppressive devil training!
Yoriichi Tsugikuni had no complaints; at this moment, he also wanted to become stronger.
Only by becoming stronger can he slay Kibutsuji Muzan, not repeat past mistakes, and let him escape.
When Lin Che began training Yoriichi Tsugikuni, he was immediately startled by his talent.
He mastered the Fighting Spirit cultivation method in less than an hour.
He completely grasped the essence of the three major sword fighting styles in seven days.
Furthermore, he integrated them, much like Esdeath, incorporating the three major sword fighting styles into his own swordsmanship.
Not only that, he also created a new Sun Breathing technique, Fighting Breathing!
Perfectly combining Sun Breathing and Fighting Spirit!
One must say, this guy's talent is truly terrifying to the extreme!
However, Yoriichi Tsugikuni also had a weakness, which was his relatively frail physical strength.
He had been thin and weak since childhood, which was unavoidable.
But this was not an issue for Lin Che at all; if physical strength was weak, then engage in strength training.
Now he possesses the strongest healing magic, Dia Frate!
No matter how badly you train, it can instantly restore you to your original state.
Just like this, three months passed!
During these three months, Yoriichi Tsugikuni managed to raise his Blessing to Level 5 purely through training!
Simply terrifying!
Not only that, because he often sparred with Lin Che, his swordsmanship also broke through to the supreme realm, reaching the Divine Domain level!
Martial Arts Reaching God!
Although not like Lin Che, who achieved Perfect Martial Arts with all martial arts reaching the Divine Domain level, reaching the Divine Domain level in swordsmanship is already incredibly impressive.
In addition, Yoriichi Tsugikuni's Fighting Spirit level also reached the King level!
Blessing Level 5, King level Fighting Spirit, plus Divine level swordsmanship.
At this moment, Yoriichi Tsugikuni's combat power is completely capable of instantly killing Kibutsuji Muzan.
After finishing training, Lin Che and Yoriichi Tsugikuni spent some more time and found Tanjiro Kamado's ancestor, Tanjuro Kamado!
After spending some time with the other party, Yoriichi Tsugikuni taught 'Sun Breathing' to Tanjuro Kamado in the form of 'Hinokami Kagura'.
After completing all of this, Lin Che left this era with Yoriichi Tsugikuni.
...
Taisho period, Demon Slayer Corps Headquarters!
On the fourth day after Lin Che left, he finally returned with Yoriichi Tsugikuni.
They had lived in the Warring States period for four months, but only four days had passed here.
This made Lin Che feel like he had discovered a new Continent!
Because during those four months, he was able to sign in every day, accumulating a total of 1220 points!