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 (...

[Trade of All Heavens] + [The Only Extraordinary] + [Technology] + [Multiple Female Protagonists] + [System]

Su Jian is a purchasing agent at a construction site. Due to the mess made by the boss's brother-in-law, a large amount of construction supplies have been piled up in the warehouse, and the boss intends to let Su Jian take the blame.

Just when Su Jian was in despair, the Wanjie Trading Platform System arrived, and a low-level martial arts world just needed these construction supplies to solve his imprisonment.

Su Jian: "Do you want C60 concrete? It's super corrosion-resistant. You can't afford to buy it without getting a bad deal."

Wang Xuan: "Why do I not believe it?"

After use...

Wang Xuan: "Give me another 1,000 tons, give me another 1,000 tons. Who can fill their teeth with this little?"

[Ding! The system has detected a world filled with dragons.]

[Ding! The system has detected the technological world.]

[Ding! The system has detected the Western Fantasy Magic World.]

…

Lighthouse Country: "We condemn the shameless behavior of Tianji Corporation, which has greatly undermined world stability and peace."

Huaxia: "Hurry up and ask Tianji Company for two warp engines. Our scientific research has reached a bottleneck again."

Sakura Country: "Baga, we must strongly condemn the use of destructive weapons by the Space-Based Corporation against us."

Su Jian: "The Sakura Dog is still barking. It seems that the fight wasn't enough. Take your grandfather's Nascent Soul attack."

Sakura Country: "Baga, he wants to destroy our country."

…

There is a new super power among all the heavens and worlds, called the Ten Thousand Worlds Trading Platform!

Yuuji Sakai, the usually vacant and somewhat weak protagonist, lives an ordinary life until the sudden appearance of a monster disrupts his ordinary life. Under the setting sun, Yuuji is suddenly attacked by an alien monster that transforms human "existence" into spiritual fire and then devours it.

At this time, a girl who called herself "Flame-haired and Burning-eyed Slayer" appeared and rescued Yuuji from the monster's mouth. Yuuji Sakai named her Shana based on the name of her large sword.

She told Yuji that his life was about to end - it turned out that outside this world, there was another world called the "Red World". In order to realize their ambitions, the people there took away the world's original power, the "power of existence", from humans one after another, and Yuji was one of the victims.

After the Crimson Apostle took away the "Power of Existence",...

Arriving in the world of God Slayer, the cheat code turns out to be a relationship development system. Is there something wrong? Luckily, I have a special ability similar to "equivalent exchange." After sacrificing my own name, perhaps I can impersonate an Outer God? Incarnated as the Last King in God Slayer, I became the ruler of the celestial realm at Demon High School, the most powerful god among gods, and handed over a divine contract in the Demon Garden... This is a story of a god born to be a god, who, after failing in his struggles abroad, must return to inherit the multiverse.

The R card casually discarded by the school beauty hides the time traveler Peng Jiong - a magic card that can transform into an "anime character".

Impoverished player Su Wanyu picked it up and placed her all on it. From being ridiculed as an R-rated supporting character, to becoming the dominant force in SR-rated Naruto and Luffy; from navigating diverse worlds of cultivation, magic, and more, to unleashing her SSR power in desperate situations—transforming into Saitama and instantly dispatching the ultimate boss with a single punch.

A discarded card's counterattack, the bond between ordinary people and cards, growing wildly amidst ridicule. When an unknown anime character strikes down, this useless card eventually becomes a national legend.

Ryuichi traveled to the Conan world and gained the ability of hypnosis, becoming Xiaolan's childhood sweetheart.

This book is set in a parallel world of Conan.

The protagonist is semi-invincible and can destroy the CP.

Fire Ryo watched anime and saw the Archbishop Greedy had the strongest cheat and fought so hard that he was unbearable to watch. Unexpectedly, he was struck by lightning while playing video games that night and traveled to the world of ghouls.

The Archbishop of Greed's invincible power to stop time was unexpectedly awakened!

"Look carefully, this is how you use the invincible power!"

Jiu Duo Er Fu: When will the bird in the cage fly?

Huo Zhiliang: Pretending? If you keep pretending, I'll make you fly!

Izumi Takatsuki: The strength of the Wasu family is not something that ordinary people like you and me can contend with.

Huo Zhiliang: Speedrun solo CCG without taking any damage, and the Hexiu family's online battle record can be checked.

Yoshimura Et:........

Arima Takamasa: I just want to create a one-eyed king, overthrow Kazuo's rule, and establish a world where humans and ghouls can coexist peacefully.

Huo Zhiliang: You are really lazy.

Everyone:.........you

Me: Ah no sa (I say), calling my name like this is an infringement on my personal rights.

"The weather is too cold, I'll cover you with a yellow robe to keep you warm."

I, the will of the world, save the world

————————

My name is Patient Zero, an NPC in a dark game.

This is a story where I took a stupid system and reminded my sister to travel through different worlds, collect the doomsday elements and return home.

The holy grail war of full whitewash, the ancient sky of the gods and demons fluttering, the unparalleled warriors of the Three Kingdoms, the impermanence of the gods, the mass effect of reincarnation, and the infinite space that makes people unable to understand the meaning of life …

————————

Hey! I am the supreme existence of all your worlds, don’t just send me a good card!

Bai Ye travels to a bizarre alternate world where food is everything and becomes a chef. He thought he'd live an ordinary life, but he gradually discovers that strange things keep intruding into this world. What the hell are gourmet cells?

Alex thought her life would continue forever like a marionette.

Every day, she was controlled to enter seemingly different worlds, exploring, mining, building houses, traveling between the main world and the Nether, and finally defeating that familiar giant dragon in the End.

Until that day.

"Let's play something relaxing today, maybe open a burger shop or something. What mod is this? Real?"

"Aine? Come down for dinner!"

"Okay~ Hmm, let me finish loading this first... Huh? So hot! Why is the computer smoking? Wow——!"

A cry of despair echoed in her ears, and the world fell into darkness.

When Alex woke up again, she found herself inside a burger shop. The feeling of being bound had disappeared. Was she free?

She walked to the door and instinctively knocked over the nearby table, lifting the long table that was taller than her.

"Ding ding ding!" The sound of a wind chime rang out.

"Excuse me... are you still hiring here?"

A tired-looking girl with blue hair in twin tails pushed the door open, but was overshadowed by a shadow in front of her. She looked up, her gaze landing on the long table she was holding high.

"Sorry! I didn't mean to interrupt!"

The setting is a mix of MYGO+Madoka Magica, with the protagonist being a semi-original character, and the MC is Alex.