Academy City. A magical city with a population of 2.3 million, filled with countless individuals possessing extraordinary abilities. Standing at the pinnacle of that city are true monsters. The first, Accelerator. The pinnacle of existence, possessing the strongest and most evil ability to truly control the direction of all energy, the strongest and most all-powerful monster in Academy City. He will face encounters with countless worlds that transcend time and dimensions. This is a world where countless imaginative beings converge, a world of magic, a world of technology, and all sorts of people and things will mingle within it. And then, the first will experience all of this firsthand. "—Interesting, then let me see how your so-called justice actually works, heroes?" Accelerator, who has degraded himself to a villain, the most vicious and evil anti-hero, what kind of encounters will he encounter on this journey beyond dimensions? The strongest and most evil one-way dark hero awakens here. A crossover anime/manga fanfiction, the protagonist is Accelerator from the original work, striving to recreate the feel of the original A Certain Magical Index.

The story begins with the Nine-Tails' rampage, but the protagonist instead goes to steal from the Fourth Hokage's house! Reincarnated into Konohagakure in the Naruto world, he's even a relative of Sakura Haruno! And a seemingly "ordinary" medical ninja at that. Watch how the protagonist uses his precognitive abilities to live a different life and save countless unfortunate souls…

"Reincarnated into the Hyuga main family, becoming siblings with Hinata Hyuga. Knowing the plot's direction, Fuyuki is a little panicked... When the time comes, what should he do when the ancestor Kaguya rises from her coffin? Should he... accept the ancestor's lack of martial arts skills, or become the ancestor's obedient grandson? Fuyuki, holding the 'Summoning Scroll of the Whirlwind Demon Society,' fell into deep thought. ...Keywords: Naruto, Konoha"

He transmigrated into the Uchiha clan in the Naruto world, becoming Uchiha Tomio, the uncle of Sasuke and the one who fought against seven opponents.

Uchiha Tomoe, a good-for-nothing of the Uchiha clan, was looked down upon by countless clan members because he had not awakened the Sharingan by the age of sixteen, despite being a direct descendant of the clan.

He inexplicably awakened the family revitalization system, thus embarking on a different path in life.

While Kushina Uzumaki is still a little kid, play the hero and save her to gain her favor.

Kushina Uzumaki: You laugh at my red hair, and I hate my red hair too.

Uchiha Tomio: Red hair, very beautiful, don't care too much about what others think.

......

Thousand Hands Nawaki: Brother, can I help you woo my sister?

That year, Uchiha Tomoe stood with his hands on his hips, unaware of what an opponent was.

That year, Uchiha Tomio confessed his feelings to Tsunade, and that very night Nawaki changed his mind.

Madara: Among the Uchiha clan, I, Madara, acknowledge you as the strongest.

Hashirama: Grandson-in-law, Tsunade is mischievous, she needs to be properly disciplined.

Minato: That year, watching Kushina being taken away, I regretted it.

Obito: I want to create a world where Rin belongs only to me.

That year, the Uchiha clan produced the Fourth Hokage.

The Third Hokage and Danzo want to seize power? Then kill them.

Now that I have become the Fourth Hokage, I will rule the entire Hidden Leaf Village.

One Against Seven: Uncle, Hyuga Hizashi wants to use Hyuga Hinata for a marriage alliance.

Uchiha Tomio: Itachi, you must not be tempted by beauty.

Sasuke: Uncle, Karin Uzumaki and Ino Yamanaka want to change their surnames to our Uchiha.

Uchiha Tomoe: Is this difficult?

"I am Amatsuki Susumei, my profession is Shinigami." He is a Shinigami who survived the first Gotei 13. A close friend of Kirinji Tenjiro, and a shinigami enthusiast. Infiltrating the first Gotei 13, Amatsuki Susumei unleashed his instincts. For victory, to surpass Yamamoto Shigekuni, to surpass Aizen Sosuke, to surpass the Zero Division, to surpass Yhwach, and even, to surpass the Soul King! He must trample everything underfoot! "Toukai, immortal! Unohana Yachiru! Come and fight!" Amatsuki Susumei raised his Zanpakuto and declared.

(Current World: One Piece, Completed World: Naruto) Infinite Dimensional Summoning, summoning hundreds of anime characters, invincible across all worlds! Madara: Young man, I, Madara, acknowledge you as the strongest! "Get lost, who do you think you are!" Whitebeard: "Young man, come and be my son!" "Heh, I'll give you a chance, call me dad!" Shanks: "Young man, give me some face, let Whitebeard go." "Let him go, fine, call me dad!" Sengoku: "Activate the Buster Call, kill him!" "Buster Call? Ship girls, let them see what a real Buster Call is!"

New content creator Youling accidentally discovered a system while uploading her first video that allowed her to upload videos to countless worlds. Simply publishing a video earns her rewards; the higher the video's popularity, the richer the rewards! And so… let's review some of the most thrilling and breathtaking scenes! Scene 1: Pain's Annihilation! Shinra Tensei! Scene 2: Conqueror's Haki Entanglement! The Clash of the Strongest! Scene 3: Unstoppable! One-Sword Asura! Scene 4: Full of Passion! This is my final demonic possession! Scene 5: … Scene 6: … After these breathtaking scenes were revealed, the entire universe was in an uproar! "Is this Whitebeard's peak power? No wonder he's the strongest man in the world!" "Konoha Village was destroyed? Who exactly is Pain, and why is he so strong?" "One-Sword Shura! Is this my limit? No, this isn't! I can surpass my limits!" "I must change the ending! I can't let my comrades sacrifice themselves! I must become stronger!" If you, dear readers, find "Multiverse Video Mashup: A Review of Shocking Moments" enjoyable, please don't forget to recommend it to your friends on QQ and Weibo!

[No need to follow ships + no need for navy (transitional) + invincible in the mid-to-late game]

In the year 1495 of the Sea Calendar, Yi Chen transmigrated to the world of One Piece with a collector system. Everything can be collected, and items recognized by the system can earn rewards.

[Congratulations, host, for acquiring the common item: "Unknown Sword Technique". Reward: One year of sword technique training experience.]

[Congratulations, host, on acquiring the rare item: "Naval Six Styles"! Reward: Five years of training experience in the Six Styles]

[Congratulations, host, on acquiring the Epic Item: Fifty Craftsmanship Skills of the Fine-Grade Sword - Mountain Falcon. Reward: Ten Years of Swordsmanship Training Experience]

[Congratulations, host, on acquiring the legendary item: Hawkeye's Dagger. Reward: Swordsmanship that can cut through steel.]

[Congratulations, host, on acquiring the divine item: The Medal of the Demon Heir. Reward: Awakening of Conqueror's Haki]

[Congratulations, host, for collecting a special item: Major Tina's personal items (duplicate). You will be rewarded with 500 collection points.]

......

In 1520 of the Sea Calendar, the Battle of Marineford broke out, and the Yi Chen Grand Fleet descended from the sky, surrounding the entire navy.

Crocodile: Boss, did you have to make such a cool entrance?!

Empress: I will protect Brother Chen's will!

Hawkeye: You want me to go easy on you? Five duels and three bottles of homemade wine!

Ming: Young Master Chen, let's cause a huge ruckus together!

Big Bear: How can we make the acting more realistic? Ah Chen is making things difficult for an honest person!

Moonlight Moria: ......

Admirals: Turn your guns around! The time has come to swear allegiance!

I traveled back to the day Konoha was founded and awakened a fancy sign-in system.

He signed in to Konoha Village as an ordinary person for fifty years.

It has everything: martial arts techniques, ninjutsu, bloodline limits, Demon Slayer breathing techniques, One Piece Haki, and more.

Due to his cultivation techniques, Thousand Hands Immortal has a long lifespan and grows younger with age, earning him the title of "Immortal Master" among the villagers.

The villagers didn't know until the night the Nine-Tailed Fox attacked the village and Thousand-Handed Immortal descended from the sky.

There is still an immortal god in Konoha!

At the same time, a cold, mechanical voice echoed in Thousand Hands Long Life's mind.

"Ding! Triggered the event check-in. Successfully checked in on the night of the Nine-Tailed Fox's attack on the village. Congratulations on obtaining: Multiverse Chat Group!"

Tony Stark joins the chat!

Portgas D. Ace has joined the chat!

Tanjiro Kamado joins the chat group!

...