The librarian, who was the champion of the World Swordsmanship Championship, traveled to the world of Demon Slayer during the Warring States Period, awakened the Great Swordsman System, and became a disciple of the Jigoku brothers.

From then on, he created various legends of his own in this world!

Muzan Kibutsuji: Facing Yoriichi, I can still escape, facing the librarian, I have no choice but to die! Yoriichi Tsugikuni: Your strength has surpassed mine! Demon Slayer Corps: The librarian is the most powerful man!

Suibian! A young man with a very casual name, living a casual life. Then, he was casually killed by a flower pot, and thus entered the world of Demon Slayer! He became Tokito Muichiro's older brother, Tokito Ichiro! From then on, his life began to be more than casual...

When Tanjiro Kamado stepped into Nada Spider Mountain, a huge screen appeared in the sky.

The question-and-answer system has officially started. As long as you answer the questions, you can get various rewards, including but not limited to "resurrection", "turning back into a human", "blue red spider lily", etc., to solve your unsatisfactory wishes!

After resurrecting his wife, Akaza said: "I am Fist Pillar. Muzan, I will *your Sage!"

Shinobu Kocho: "I have a gentle personality? Wait until I get the reward and you will know what a killing angel is [sinister smile]."

Agatsuma Zenitsu: "Grandpa was forced to commit suicide? I'll show you what a fucking thunder pillar is! What a fucking thunder pillar is!"

Douma: "The punishment is to experience extreme pain? There's such a good thing?!"

Mitsuri Kanroji: "Eh?! Mr. Iguro likes me? Then I'll confess right now!!!"

Kokushibo: "I want to resurrect Yunichi. Even if Muzan comes, he can't stop me. I said it!"; Muzan: "You are really my living father."

Tomioka Giyu: "I want to be the most popular person [cold face]."

Muzan Kibutsuji: "The reward is a blue Higanbana?! As long as I can get it, I'll do anything~"

......

Is the plot difficult to accept?

Through questions and answers, all of them were changed to perfect endings!

(cp: After chapter 20, I will not promote the official version, only Komare and Snakereen)

Si Jinkun, who traveled to the Demon Slayer world, shouted at the beginning: I don’t want to be a human being anymore!

He went completely crazy after arriving in the world of Demon Slayer

That shadow that has lingered for a thousand years—Muzan Kibutsuji! That pitiful creature who cowers in fear because of the curse, that false king who vainly seeks immortality!

All his struggles and blood ghost arts became futile jokes in front of Si Jinkun's ultimate body that combined the curse of the stone ghost face and the essence of countless ghosts!

He treats Wuzan as a high-end bun

It also forced the demons and the Demon Slayer Corps to join forces for the only time in a hundred years.

Many years later, Si Jinkun, who had already become a JO-level creature, looked at the world he had ruined and fell into deep thought.

Travel through Demon Slayer and merge with Muzan Kibutsuji!

Reorganize the Twelve Demon Moons, run rampant in Tokyo Prefecture, and terrorize Japan!

End the Demon Slayer Corps, liquidate Ubuyashiki, and aim at Taisho Tenkō!

Strategy of thousands of ghosts, swallowing the world, only I am Yue Yan!

On the night of Kiritsugu's death, Shirou fell asleep and woke up to a new world.

There are ghosts here, and there are swordsmen who kill ghosts.

From now on, partners of justice are no longer a borrowed slogan!

But it is a creed that you carry out throughout your life!

Ghost King, give me your life!

Infinite Holy Grail War?

Run through every one of them!

Lin Guang travels through the world of Demon Slayer and awakens the Super Treasure Chest System! In Demon Slayer, slaying demons unlocks treasure chests; defeating the navy and celestial dragons unlocks treasure chests; and defeating enemies unlocks treasure chests in Naruto. Thus, Lin Guang continues to unlock treasure chests, conquering the world!

After traveling through Demon Slayer eighteen years ago, Kamishiro Mitsuteru thought this was just an ordinary ancient world.

Until the night of the blood moon, the evil spirits tore his warm home apart.

When you are on the verge of death, the sign-in system is activated!

[Congratulations to the host for receiving the Newbie Gift Pack: Nature-type Sparkling Fruit! ]

The body instinctively transforms into elements to avoid the fatal blow!

He raised his hand and pointed, and the holy light penetrated the evil ghost, evaporating it instantly!

The loud noise attracted the dying Kanae Butterfly, and the Second Upper Moon, Douma, who was standing in front of her.

Under Kanae's desperate gaze, Kamishiro Kouki transformed into a beam of light and kicked Douma half of his body away at the speed of light. He sneered and said, "Sorry to bother you. But you can die now."

[Crossover anime + invincible later on + no system, current world order: Bleach - Fate - Oni Blade - Naruto - One Piece]

Tianji transmigrated to the world of Bleach. Knowing Bleach well, he originally thought he could make a name for himself, but fate played a joke on him. Tianji transmigrated to 1,500 years before the main storyline. At this time, there was no Shinigami Academy, and even the Gotei 13 had not yet been formed. The only one protecting the Soul King was the Zero Division, which only had two members.

That's not all. I thought I could finally enjoy life after defeating the Grim Reaper, but then I was transported to another world.

Sitting down in the Internet cafe, he came to a world full of zombies.

But he found girls from other worlds.

Li Ke thought he would spend the rest of his life in this haunted world, but he unexpectedly found that he could go to other worlds through these girls, go to their worlds to save the world, or collect resources.

It's just that the method of passing through is a bit difficult to talk about... But it doesn't matter, as the savior of the infinite world, you have privileges!