This book will further continue the world view with a very high mortality rate. The difficulty of survival for Tanjiro and others will be further increased. The secrets hidden behind the demon king Muzan and a mysterious organization that has existed for a thousand years will be revealed. The story takes place in the second week of the original plot. Li Qingming enters the world of Demon Slayer and obtains the Infinite Achievement System. While killing evil demons along the way, he is also pursuing his inner desires. When making a decision, power and humanity will eventually make a choice.

[System pays for life][Exhilarating combat][Thunderous][Growth]

When Yasui Ryosuke is transported to the world of Demon Slayer, he is devastated.

Good news: He is familiar with the original work and knows the plot.

Bad news: The original owner was a sickly person who was not long for life, and the only cheat was the double-dealing system that required spending a lot of time and effort to become stronger!

"You mean killing demons grants you lifespan, which can then be used to enhance your breathing technique and sword skills?"

Yes, that's right~

How much longer can I live?

[Congenital liver failure, at most one year, haha~]

"Fuck your sister!"

Yasui Ryojie was angry.

What kind of good system would make a cancer-stricken host risk their life?

Knowing the original plot, Ryosuke would never willingly seek his own death by joining the scoundrel Muzan.

If that's the case, then kill!

Kill them until the sky darkens...

Having transmigrated into the world of Demon Slayer, Mugae became Muzan Kibutsuji's adopted son and became Kokushibo's apprentice to learn Moon Breathing. The young prince Mugae declared that with this identity, he could roam freely throughout the entire demon world!

Muzan Kibutsuji: He's such a filial son, I'm dying of filial piety. I never want to kill his father with Tamayo.

Domo: I treat Wuya like a young master. The young master always wants to treat me to wisteria flower tea, and he also likes to take me out to bask in the sun. He's so considerate!

Jade Pot: Young Master Wuya is a hypocrite. He says my pot is asymmetrical, but secretly he sells it for money!

Naruto: With Young Master Wuya's praise and recognition, my flute playing skills are getting better and better!

Lin Guang travels through the world of Demon Slayer and awakens the super treasure chest system!

In the world of Demon Slayer, treasure chests will appear as long as you kill demons; in the world of One Piece, treasure chests will appear as long as you defeat the navy and celestial dragons; in the world of Naruto, treasure chests will appear as long as you kill enemies.

So, Lin Guang continued to open boxes and conquer the world!

Lin Yan traveled through time and space in the blink of an eye. He traveled to the world of Demon Slayer, to the body of a dying beggar. The wind was freezing cold, and Lin Yan had no strength at all. He could only huddle in a corner, feeling the vitality in his body gradually disappearing in despair. As a traveler, he even had the golden finger [a system that can make you stronger by eating], but he had no chance to use it. After all, the reason why he fell into such a situation was because he had nothing to eat. At this moment, a pair of slightly immature hands full of wounds pulled Lin Yan up.

When I woke up, I found myself as Nezuko Kamado!

Seeing the horrific scene before me, on the verge of annihilating my entire family, I was filled with rage!

What delicate little sister?

In this life, I hold the script in my hand, and I crush the bamboo tube in my teeth!

The game starts with awakening the Sun Breathing technique and the Transparent World. Tanjiro, step aside! Muzan, you old scoundrel, take this [Flash Dance]!

Shinobu Kocho: Something's wrong with this kid!

Yiyong: ...Water? I'd rather not learn it.

Purgatory: Hmm! What spirit this young lady possesses!

To change the tragedy and beat up the scumbag boss, in this life, I, Nezuko, will slaughter my way through the Infinity Castle!

Shenyuan Ziye's soul traveled to the world of Demon Slayer, awakened the Ice Breathing Technique, and obtained a system that allows him to level up by killing demons!

After traveling back in time for two and a half years, his parents were killed by evil spirits. Shenyuan Ziye was heartbroken and decided to join the Demon Slayer Corps. After becoming Bingzhu, he began to kill demons wantonly!

Tanjiro Kamado: Yes! Mr. Kamogen is a very powerful person!

Agatsuma Zenitsu: Kamigōnen, is work the only thing on your mind?

Inosuke Hashibira: Damn it! I can't surpass you again? Moonlit Night!

Shenyuan Ziye: Even if my body is destroyed, I will definitely kill the evil ghost!

...........

No heroine, a growing protagonist, invincible in the later stages, weak system, many battle chapters, high-energy throughout..........

A young man whose hair turned white overnight because he looked like a girl was deceived, discriminated against, excluded, disdained and despised. Fearing to experience these things again, he is unwilling to interact with people often. Even if he has friends, he only has a very small number of close friends.

His father passed away due to years of overwork, and his mother and adopted sister have always been with him and never left him.

"Brother, look, these are the cookies I made. Am I awesome?"

"Brother, can you accompany me to the park tomorrow when we have a day off?!"

"Son, Mom is going to pick up your sister from school tonight. Go buy some vegetables and come back to cook!"

However, this time it is a farewell forever!

"Do you have any other wishes? I will do my best to make them come true for you!"

"Can you take good care of my mother and my sister for me?"

"Okay, I promise!"

"Ding! A suitable host has been found, and the Demon Slayer System has begun binding! Binding completed, opening the portal to another dimension!"

"Ding, transmission successful, welcome to the world of Demon Slayer"

"Where is this place?"

[Crossover] + [No CP] + [Plot-oriented] + [Not invincible]

The protagonist has the same appearance and Sun Breathing as Yoriichi Tsugakuni, but his strength is not as strong as Yoriichi Tsugakuni, and his personality is exactly the opposite.

Gu Xuan: I can’t protect anyone I want to protect. I am a worthless man.

Everyone in the Demon Slayer Corps: It was Mr. Guxuan who led us to kill Muzan Kibutsuji, and it was also Mr. Guxuan who saved us when we were in crisis.

To protect his childhood sweetheart, the naturally insightful Shihouin Suqiu resolutely chose to join the Demon Slayer Corps and become their hidden ace, the Shadow Pillar. All tragic endings will be changed. No one will be hurt or cry anymore, because I'm here. "Muzan, didn't you say that those you hurt were merely experiencing natural disasters? I am your natural disaster."