After the newly graduated college student finished making the game in the apartment, he was sent away by the Hundred Ton King and came to the world of Zero Zone. He was picked up by the two protagonists in the void. After waking up, he found that the game he made had also come with him and inherited the first character, Yuichiro Tsugikuni. At this time, the brother and sister were still novice rope makers who had just embarked on the road of "rope makers".

In order to repay the favor and also to test his own strength, he resolutely decided to become the other party's agent, "I will protect you two until the end of the world."

After Tsugukuni Yoriichi passed away, his thoughts did not stop. Everything he had experienced in his life, like a kaleidoscope before his death, replayed in Tsugukuni Yoriichi's consciousness. Many of these memories were filled with laughter and happiness, but more of them were sorrow. He felt ashamed of the life that God had given him, and that he had accomplished nothing in his long life. Then, Tsugukuni Yoriichi discovered that not only was he not dead, but he had also returned to his most youthful and peak state. "I have to do something."...

Tiandao Feiyuzhen, accidentally reincarnated into the world of Demon Slayer, was picked up and raised by the former Naruto Pillar. He vowed to change the regrets of the Pillar Slayer, and since then...

There is a new pair of master and disciple on Taoshan, who are enemies and have a kind master and filial disciple.

The Demon Slayer Corps now has a thick-skinned and strongest pillar.

Shinobu Kocho has a sweetheart she cares about.

Muzan has a new big father - another psychological shadow after Yoriichi.

When the evil spirits are slain, the night will no longer be scary!

"Even though this prince has committed heinous crimes, I have the renowned Thirteen Guardians under my command. Who dares to touch me... What? The Thirteen Guardians were all destroyed by Shen Liangan?"

"Prince Anyang is too powerful. We should gradually dismantle his forces and defeat them one by one... What? Shen Lian destroyed Prince Anyang's mansion to the point of leaving nothing behind? Dogs were smacked with a few big daggers? Earthworms were split vertically? Ants were scalded with boiling water? Egg yolks were shaken apart?"

"The King of Chu is rebelling and occupying the Imperial City. We need to develop slowly and maintain stability... What? Shen Lian single-handedly killed all the rebels in the Imperial City?"

"Now that the demon army is approaching, I'm afraid our human race is doomed to failure this time... What? The demon king has become Shen Lian's mount?"

…………

Demons are surrounding the world, and human beings are suffering!

Shen Lian traveled through the Great Chu Dynasty and became a demon-suppressing Jinyiwei.

Awaken the external plug-in of the Prison of Sin and kill those who enter the Prison of Sin to obtain merit bounty, which can improve martial arts.

Now that everything is possible, who would still bother to practice martial arts?

"Thirty-six routes of wolf smoke rise, nine thousand miles away, the dragon is slain and returned!"

"Martial artist Shen Lian!"

"Please, all the demon races...die!"

ps: Also known as "Use Merit to Learn Martial Arts, From a Scumbag to the World's Best", "Guarding the World for a Hundred Years, I Am Invincible", "Starting with the Arhat's Demon-Subduing Magical Skills, Sweeping the Demon Race in the Troubled Times"

[Become stronger by killing demons, system + time travel + double agent + invincibility + no heroine + demon suppression department]

Chu He joins the Demon Suppression Division at the beginning and awakens the super point-adding system!

He rose to prominence as a supreme evildoer and quickly took control of the Demon Suppression Bureau!

"Chu He, you are a lackey of the imperial court. How dare you destroy my entire sect? You will not live a good death!"

"Chu He, you actually colluded with demons to frame an official of the imperial court. You will not die a good death!"

"Master Chuhe, I am just a little demon who is thousands of years old. Please forgive me."

Chu He: Now that we have said it, go on your way with peace of mind!

...

...

[The introduction is weak, please move to the main text! ]

Introduction: I just want to cultivate immortality in peace, but demons and monsters are wreaking havoc on the world.

The Taoist rode his donkey down the green hills and became the only immortal in the world, deifying all things in the world as gods.

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Traveling through Naruto, Uchiha Arashi, who has no golden finger, can only survive and develop, hoping to change the fate of genocide. However, things do not go as he wishes. In the end, he is powerless and cannot prevent the arrival of the night of genocide.

In order to survive, Uchiha Arashi had to fight wits and courage with Obito and Itachi, but due to his low strength, he was ultimately unable to escape.

Just before his death, he was under pressure to awaken the Uchiha clan's biggest cheat - the Mangekyō Sharingan. Finally, under the power of the Sharingan, Lan traveled to the world of Demon Slayer and survived.

But how could Lan, who was unwilling to be ordinary and vowed to take revenge, let Uchiha Itachi and Obito go?

When Lan learns the breathing technique, what kind of sparks will be created by the collision of breathing technique and ninjutsu?

(New author, please enjoy the large portion as much as you can!)

After waking up again, Su Chen found himself at the time of the Third Ninja World War of Naruto.

And awakened the Template System of All Worlds.

Every week, a template of a character from all realms will be randomly refreshed.

And as Su Ming continues to perform, his acting skills will improve.

Before the next template refresh, set the template to 100%.

You can randomly retain one ability of the template.

In this way, Su Ming's counterattack in the Naruto world began.

[Ding! 168 hours have passed, refresh template Gojo Satoru]

[Ding! 168 hours have passed, refresh the template Ji Guoyuanyi]

[Ding! 168 hours have passed, refresh the template Arima Takashi]

In this way, a "madman" who often fantasizes appeared in the ninja world

Sometimes he might be a handsome and unrestrained man with his eyes covered with a black ribbon.

Sometimes he might be a powerful swordsman holding a long sword and cherishing his life.

But remember, when facing this madman, be polite and humble, it may save your life.

after all…

You never know what role he is playing now.

[Make up for regrets + double crossing + decisive killing]

On the eve of his clan's genocide, Sasuke came to the world of Demon Slayer. From then on, the Demon Slayer world had one more Demon Slayer.

Just as he inherited Yunyi's will and was about to kill Muzan, the Sharingan evolved into a Mangekyō, and the power of time and space pulled him back to his original world...

When Uchiha Itachi returned home and was about to kill his parents, he found his younger brother, who was four years older than him, sitting cross-legged at the dining table.

Uchiha Sasuke raised his head, looked at Itachi, who was in shock, and said softly:

"Sit down, brother, and put the knife away. If you use a knife in front of me... you will die."

"I don't want to kill any of my relatives anymore..."

Cheng Mo's life fell into despair.

My younger sister is seriously ill and her studies are on the verge of collapse...

Until he picked up a mysterious compass, his life took an outrageous turn——

Save Nezuko, accept Tanjiro as his apprentice, and get involved in the dispute between the Demon Slayer Corps and Muzan...

"Wait, didn't you agree to just be a profiteer?"

"My Lord, let's discuss business. I'll sell you penicillin, and you'll teach me breathing techniques, how about that?"

"Ms. Tamayo, I have a report on modern genetics. Would you mind using some of my blood to study it?"

"Muzan? Oh, don't run away with that moving gift bag of time and space coins!"

Cheng Mo just wants to resell resources and make enough money to save his sister.

When he looked back, he discovered that he had already held the authority of countless worlds and became the largest behind-the-scenes supplier in the heavens!

Tanjiro: "Teacher, what is the 'currency' of this world?"

Cheng Mo: "It depends. Maybe it's a devil fruit, maybe it's chakra, maybe... the future of a world."

(This book is also known as: "I Resell Supplies in the Heavens" and "After Accepting Tanjiro, I Became the MVP of the Demon Slayer Corps")