Transmigrating to the Type-Moon world, Ryougi Shinobu becomes a magician. He initially thought his life would consist of fighting the Holy Grail Wars and occasionally saving humanity, but he gains access to a dimensional forum linking different worlds. Shinobu asks, "Can humans and demons really get along?" Ryougi replies, "Immortal demons are perfect experimental subjects, ideal for mining or working in nuclear-contaminated areas. Isn't that harmonious enough?" Ai Haibara asks, "I work for a cult, and they killed my sister. How can I get revenge?" Ryougi replies, "Take that drug that turns people into children, and I'll immediately scatter their ashes."... Members from different worlds constantly appear on the forum. While helping them solve their problems, Ryougi also collects some local specialties and earns a few hundred million points.

Inside a clock tower, a professor is introducing the flourishing of European magic. "I'm telling you, only Europe is the center of magical knowledge; other regions are just places for country bumpkins!" "But teacher, Japan is hosting the Holy Grail War! I heard it's related to the Third Magic." "...That's an exception; Japan is still the countryside." "But the Fifth Magician is also in Japan." "That's an exception; it doesn't prove anything." "The descendants of the First Magician also live in Japan." "A...an exception..." "But the Fourth Magician is also in Japan...Teacher? Where are you going?" "Pack my bags and move to Japan!" --- A singularity descended from beyond the origin, he inherited the path of a magician and began to travel the world. Indifferent to destruction, indifferent to the future, he simply passed by like the wind. But his originally light steps unknowingly became heavy due to numerous karmic connections. The fairytale witch, the moon princess, and the sometimes-gathering, sometimes-scattering Fifth Magician—their existence bound his thoughts to the planet. Then he understood that in order to live up to their expectations, he would guide the world to a future without the Steel Earth and the Moon Coral. (Storyline: The Night of the Wizarding Magus - Tsukihime -)

Natsukawa Tora transmigrated to Type-Moon. Lacking magic skills and connections, he was busy working odd jobs, initially thinking he'd be the most pathetic transmigrator. But everything changed after he was chosen by the Holy Grail and summoned King Arthur (Old Saber). Especially after the Holy Grail War ended, and Old Saber became his [Special Forces Machine], turning him into Old Saber Superman. ...On a certain day, in Chaldea, in the same familiar corridor, around the same familiar corner. "Sajyou Aika, don't come any closer! I don't know Arthur, really! -- Emergency call!" [Being being teased by a friend's old face [I'm telling you, Souji is super cute]]

Chen Xiao transmigrated into the world of One-Punch Man and became the "strongest man on earth," KING. He had just opened his eyes when he had to face the Vaccine Man who was about to destroy the city.

Just as it was about to reopen.

[Ding! Congratulations, host, you have obtained the Death Gate Kai template]

[Congratulations, host, you have obtained the peak of the Death Gate Kai physique, and it will not consume your life force. This state is the normal state.]

The power of the Eight Gates, which Death Gate Kai had to expend his life force to open, was nothing out of the ordinary for Chen Xiao.

Faced with the sudden attack by the vaccine recipient, he simply threw a punch.

In an instant, space distorted!

I'm Nobita Nobi, a genius, and I don't have a Doraemon. Until one day, I found a mirror in my room, and a Doraemon jumped out and said to me, "Nobita, have you seen Nobita?"... PS: Contains Kamen Rider elements; please don't read if you dislike that.

Synopsis: Transmigrated into Doraemon's world, becoming Nobita's classmate Hoshino Uda, and activating a god-level sign-in system! [Sign in the four-dimensional pocket to obtain a level one small world!] [Sign in the magic world to awaken all-elemental magic talent!] [Sign in the time tunnel to obtain first-tier time and space abilities!] Sign in to become stronger, and roam freely in the adventure world! (Real-world mutation + grand adventure)

In some desolate place, a group of systems surrounded a beautiful young girl...

Asuka (looking blankly): What is a human body? We are both system consciousness entities, so why are you creating a human body for me?

The systems sighed repeatedly: Although we are all consciousness entities and it is only a matter of time before we become systems, your consciousness entity has a defect.

Creating a human body for you is merely a way to transport you to a lower-dimensional world and fill in the emotional gaps you lack.

Asuka the girl: I don't understand?

All the systems: Whether you understand or not, go in!

......

By a twist of fate, Shimizu Asuka wakes up in the dimension where Nohara Shinnosuke lives.

Misae Nohara: Oh, Xiangxiang, how many minutes do you bake the beef pancakes you taught me to make yesterday?

Shinnosuke Nohara: Asuka-neechan, would you... be my bride?

Hiroshi Nohara: Koko, could you please brew some more fruit wine? Our company's chairman seems to really like it.

(Note 1: This is a Crayon Shin-chan fanfiction. The writing style is closer to the characters' personalities in the anime, so some parts may seem childish. Please don't take it too seriously, thank you.)

(Note 2: This article will include plot elements from the Crayon Shin-chan movie, so there will be some time travel and fantasy themes in some settings, but not too many. These will be marked in advance. You can skip this part if you don't like this kind of plot.)

As the colossal ship named Black Whale crossed the endless seas, what awaited them was the gatekeeper and the dark continent behind him... What? You're telling me the gatekeeper is Gol D. Roger? The dark continent is full of purple fruits that can awaken Nen abilities if eaten? What...? The Hell Rattlesnake is Kaido? The gas-mist-like life form A is Crocodile? The nurturing beast Papp is Big Mom? Iron Body is actually "Firm"? Finger Pistol is actually "Shoot"? Paper Drawing is actually "Flow"? Observation Haki is actually "Circle"?! Master, I understand! After the Black Whale survived the Great Battle, some died, some escaped, and Kuroro, who rewrote the ending and ultimately won, led the new Phantom Troupe, riding the Black Whale, and set sail! The New World? Isn't this the New World? What kind of extremely evil people are these? Aren't the spiders evil enough?! ...Know...

"Host, it's time for you to show off again." Chen Mo paused for a moment, then put down the gleaming Zi-O Driver. "It's time." After saying that, Chen Mo arrived at an empty square, took out his Spark Lens, and shouted loudly: "Tiga!"... Yukino Yukinoshita: "My turn, draw a card!" Kasumigaoka Utaha: "theworld!" Sawamura Eriri: "Henshin!" Shinomiya Kaguya: "This is equivalent exchange!" Kato Megumi: "Walk in the darkness, serve the light, all is vanity, all is permitted!"... Why is the aloof beauty of the academy addicted to playing cards? Why does the famous novelist contort himself in strange poses? Why can't the well-known illustrator live without toys? Why is the rich heiress superstitious about alchemy? Why is an ordinary passerby wearing a cloak? And why are cultivation sects frequently appearing in the vast land of China? Looking at this increasingly strange world, Chen Mo declared that all of this was irrelevant to him.

What are Joan of Arc's three good points? Kindness, ignorance, and easy to seduce. Whether it's Black Joan, White Joan, Young Joan, Blue Joan, Red Joan, or whatever Joan of Arc is, they're all mine! What? You say there's no Red Joan or Blue Joan? They just look the same, so it's fine.