What bad luck! I choked to death after drinking a sip of warm water and traveled to this upside-down world!

What is upside down? It means that in a world where women are the mainstream, the attributes of men and women are reversed!

He thought he would live an ordinary life, but on the day of his high school graduation, a thing called the Sprite took him to a dimensional chat world that connected the heavens, changing his original life trajectory.

Yan Shuangying: How can someone like you change...

Xiao Yan: Thirty years on the east side of the river, thirty years on the west side of the river...

Spider-girl Shiraori: I...I...

Komon Ikki: Light is a bond...

Aqua: Hahahaha…

Kato Megumi: Oh my, I didn't expect that my presence is still so low here, I am inaction...

Ye Wuwei: ...The introduction is weak, please read the main text!

Top ten villain bosses.

The god who descended upon the ninja world - Pain.

The savior of evil - Dio.

Ice Queen - Esdeath.

War maniac - Major.

The tragic ant king - Meruem.

Perfectionist - Aizen.

Evil deeds are easy to commit - Valentine.

Frieza, the Emperor of the Universe.

Bishop of Heaven's Will - Otto Apokalis.

Dangerous criminal - DC Joker.

…

Past vs. Present Series

Former Big Brother-Dying a Hero

The current big brother - Flame Pillar

Former teacher-Zefa

Current teacher-Murata Himeko

Good news: I got a door between two worlds, behind the door is an unexplored new world.

I have just been optimized and am idle at home. All I can do is dig for gold, resell some handicrafts, and become the richest man in the world.

Bad news: Why the hell are there monsters? Demons? Magic? Oh no, we've run into a tough opponent.

But it doesn’t matter. When in doubt, just use artillery fire.

What? You're saying we can't buy guns or cannons?

You can always buy plane tickets!

Sent to the island country.

Enter the village quietly and don't shoot with a gun.

Come to a hearty and weird revival!

…

This book is also known as "What should you do if you encounter demons in a different world? Don't panic, use the gate between the two worlds to send them to the island country first..."

…

The current world——the ruined Fulilian...

The subsequent world - Demon Slayer (...

“Right or wrong, I no longer have the strength to explain. If you have anything to say, go talk to my holy sword.

My name is Xiling, a hero. Ever since I pulled out the holy sword, I officially joined the chat group.”

Kevin: “I’m fighting my future self? Is that for real? Will I win?”

Faded One (Tarnished): “Magic is also strength. I became king through magic—why wouldn’t that count?”

Remuan: “This is way more fun than a gun!”

Luo Tianyi: “I think I’ve time-traveled to an ancient world!”

Horaiji Kyusho: “I will lift the curtain of salvation and embark on the path of the savior.”

Erena: “…Can I leave the group? I feel like I don’t fit in with you all.”

In this story, you will see:

About me time-traveling 50,000 years into the future and picking up a cat

Kevin vs. Kevin

The Blade of Supreme Will

Something’s off about this ancient world

Becoming the martial champion in ancient times

The final battle against the Will of Collapse

Remuan piloting a mech

Encountering Hatsune Miku while playing in a band, strong as a monster, unbeatable

Elysia looking for someone

Book description: "Mr. Lin Feng, there are rumors that you control the Azure Lane and the Crimson Axis, and even bring many faction flagships under your command. Is this true?" Lin Feng: "Of course it's false. This is a slander against me!" "So..." Lin Feng: "Actually, there are also Siren." "???"

[Naruto Fanfiction + System Flow + Invincible Cool Article + Not a Saintly Virgin + Decisive Killing]

Traveling through the world of Naruto, starting out as a war orphan, with no bloodline, no background, and no resources?

It doesn’t matter, my name is Kamijue Yusuke, a man who can upgrade his ninjutsu to infinite levels!

While others are still worrying about learning C-level ninjutsu, my [Three Body Technique] has been practiced to MAX, I can form an army with just one thought and be immune to Tsukuyomi!

While Uchiha was still feeling proud of his Mangekyo, my [Fireball Technique] had already evolved into Sun True Fire, and even Amaterasu would have to take a detour when she saw it!

[Taijutsu] MAX: Punches the perfect Susanoo, kicks the Ten-Tails Jinchuriki, and the Eight Gates? What kind of garbage is that!

…

Uchiha Madara: "In terms of Taijutsu, I would like to call you the strongest!"

Orochimaru: "Give up the Sharingan, Yusuke-kun, your body is the most perfect art!"

Kaguya: "You...you're not a ninja, what kind of monster are you?!"

Kanzuki Yusuke, carrying a "planetary-level Rasengan", stood on the top of the gods and smiled calmly:

"I'm just a mortal who has put in the most effort and sweat."

"So-called bloodline, so-called talent, in front of a hardworking person like me, are nothing but chickens and dogs!"

Shiraishihara travels to the Conan world. Obtain a system, and loving beautiful women will make you stronger! Start with the initiation of Maori Ran! Joy! Queen of Law, Eri Kisaki, and the stunner Yukiko! Still charming, what a wonderful young woman! Maori Ran: "Honey, I can do the black maid outfit and the splits!" Sonoko: "Ran, we're sisters, sharing the same pole!" Eri Kisaki: "You and Ran already..., how can you still do it with me—ah, more!" Yukiko: "I'm very good, please favor me!" Vermouth: "Do you like my secret?...Ah? I'm pregnant?!?" Sato Miwako: "I can wear a uniform and call you daddy." Miyano Shiho and Miyano Akemi: "Do you like sisters?" Suzuki Ayako: "This split, even my sister will cry!" Kosaka Natsumi, Urashi Seiran, Akiba Reiko, Kudo Shizuka, Miyano Akemi, Ikenami Shizuka, Suzuki Tomoko, Takei Naoko... Conan and Gin were stunned—

"Who am I?"

A replica of Sky Striker and the soul of a time traveler.

"Who are you?"

A shattered Lord God.

"What should I do?"

Go to different worlds to kill villains and complete missions.

.....

"Should zombies die?"

—— "Then you die?"

"Sky Striker, what have you done?! If you kill politicians and management, how can humans maintain order and fight against the Honkai?!"

—— "It's simple, I will become the emperor, right?"

"You hold high the banner of justice, but your heart is full of selfish desires. To be frank, you are just a selfish guy! Hypocritical!"

—— "Don't understand? Go talk to my Sky Striker's blade."

"You kill people like crazy. You do whatever it takes to achieve your goals. What's the difference between you and those villains?"

—— "First of all, let's define what a human is."

.....

"Don't you think Sky Striker is getting more and more cruel?"

"Another Sky Striker? Too scary!"

"Sky Striker, not bad, tactical weapon, indeed extraordinary, huh? What does Sky Thunder mean? She also has TY-PHON?"

"Sky Striker is too strong. At this point, there is only one way to defeat her..."

"Just go up and stick to her. She can't stand it!"

Funny, stupid, passionate, and a bit of a middle school student...

Li Wen discovered that there were problems with himself in every world!

Li Wen, who accidentally traveled through all the heavens and worlds at the same time, saw more and more of himself joining in, and he discovered a problem -

There is a big problem with his time travel!

Suqing world.

Suqing Liwen: "I didn't escape the Akusis Cult to become a demon! Hey!"

The world of pirates.

Nami: "As members of the Axis Cult, we can do anything!"

Pirate Li Wen: "Hashi bean sack!"

Genshin Impact World

Ying: "From now on, I will stand in the sky!"

Genshin Impact Li Wen: "That's it! That's it!"

Naruto world.

Hokage Li Wen: "I am the man who will become the Pirate King!"

Tsunade: You go become Hokage!!!

Li Wen: "..."

Existing worlds: One Piece, Genshin Impact, Soreki, Naruto, Elf...

Once I traveled through MC, I am a cube man in this life!

After traveling to "Minecraft", I not only obtained the system, but also entered the chat group!

Madara: I would like to call you the strongest!

Shinobu: If I can revive my sister, I can give everything!

Ying: Looking for my brother? Whoever wants to find me can go find me! I’m done with this!

..........

[Ding! Congratulations to the host for unlocking the original immortal cultivation module! ]

[Ding! Congratulations to the host for unlocking the Endless Greed module! ]

........

Protagonist: I am invincible, do whatever you want.