One day, tickets fell into the hands of people across countless worlds. Following closely behind were a hyper-dimensional train that traversed these worlds. Boarding this train allowed one to travel through countless realms, witnessing their landscapes, meeting their people, learning their knowledge, and savoring their cuisine… and, because of this train, the fates of people in each world were altered. In the Detective Conan world, Gin became engrossed in training and made a deal with Conan; the former workaholic of the Black Organization ultimately became a pay thief. In the Naruto world, Jiraiya traveled freely through other worlds, broadening his horizons and writing the world-shaking "Make-Out Paradise," a quartet of mermaids, angels, elves, and succubi. In the Demon Slayer world, the Hashirama of the Demon Slayer Corps hung Muzan Kibutsuji upside down from a tree, chatting and laughing as they sipped wisteria tea, waiting for the sunrise. In the One Piece world… because of the arrival of the hyper-dimensional train, dimensions became interconnected, countless worlds became more prosperous.

[Immortal Body] + [Daily Login System] + [Rinnegan] + [Naruto Across Worlds] + [Invincible from the Start]

Shen Yueyou's soul travels to the battlefield of Kikyo Mountain in Naruto. On the verge of death, he activates the God-level Sign-in System and starts as a legend!

[Konoha Memorial Monument, Sign-in: Perfect Sage Body + Eternal Kaleidoscope!]

[Valley of the End, Sign-in: Wood Release: True Several Thousand Hands!]

[At the Omni-King's Palace, sign in: The Law of Cosmic Erasure/Creation!]

The Nine-Tails' rampage? He held down the berserk Nine-Tails with one hand: "Behave yourself, don't disturb Kushina's rest."

The Fourth Shinobi World War? Black Zetsu: "The Eye of the Moon, which I've planned for a thousand years, has become his graduation ceremony for his students?!"

Minato Namikaze: "People call me the Golden Flash, but Yu is the only sun that illuminates the entire ninja world."

Ōtsutsuki Momoshiki: "Impossible! How could a mere inferior being possess divine power that surpasses even ours?!"

When the ninja world bows down, all the myriad realms are within its sign-in scope. This is a story that begins with Naruto, crushes all others, rewrites all tragedies into perfect endings, and ultimately becomes a legend of sign-in across the multiverse.

Brothers, please support my new book! I'll write 6,000 to 8,000 words a day.

[One extra chapter for every five-star review]

Having transmigrated to the world of One Piece, Aegis set himself a goal: to defeat the Four Emperors and the Admirals within two and a half years, and overthrow the Celestial Dragons' rule. However, nearly 20 years later, what Four Emperors and Admirals? What Pirate King? What Marine Admiral? What One Piece? What justice? What World Government? To hell with them all! Facing the chaotic sea once more, Aegis decided to go home, settle down, and live a peaceful life.

Ryosuke is a transmigrator who finds himself in the Uchiha clan, on the verge of extermination. He starts with an automatic training system and a "many children, many blessings" system. On the night of the massacre, he punches Itachi Uchiha and kicks Obito Uchiha.

[Multiple Women] + [All Heavens]

Mo Bai unexpectedly obtained a system that allowed him to travel through various film and television worlds, and from then on, his presence could be seen in movies, TV series, anime and other film and television worlds.

In his previous life, he couldn't even work as a beast of burden because of a back injury. In this life, Mo Bai wants to live a more exciting life.

"A Certain Magical Index, A Certain Magical Index, who is the strongest person in the world?" "@＃￥%*！..." [Mahoutsukai no Yoru → The Fourth Cup War → Re:Zero → High School DxD → Gensokyo → Little Garden → Cinderella → Type-Moon → No Game No Life (Prequel) → A Certain Magical Index] [Xia Mo]

When Ryan opened his eyes, he found himself transported to the perilous world of One Piece with a useless system.

Here, pirates roam freely and danger lurks everywhere. The strong can slaughter islands and destroy countries, while nobles are domineering and arbitrarily reduce people to slavery.

What?

You're saying I'm a Celestial Dragon?

Ryan said, "Then I'll lie down."

Lin Mu, a high school student who fell into the Naruto world, activated the All-Things Recycling System. *Ding!* Recycling Naruto's worn-out shoes yielded Nine-Tails chakra. *Ding!* Recycling Sasuke's tattered kunai granted him the "cool" trait. *Ding!* Recycling the Tailed Beast Ball granted him the power of the Tailed Beast… That's right, Lin Mu, with his own garbage recycling station, has written countless legends in the Naruto world. His words even made Madara Uchiha and the Otsutsuki clan tremble: "What kind of garbage are you?" My name is Lin Mu, come with me to recycle everything!

Char: "So, humans ultimately can't understand each other. Most human souls are bound by gravity. If you want to deny me, to make me believe in the power of possibility, then push this satellite colony back and see! It's too late! Humanity is doomed!" Lin Wen-li: "Okay!"... Char: "No! You should push this Axis back for me to see!" Lin Wen-li: "Okay!"... Char: "No! You can't possibly push Jupiter, can you?!" Lin Wen-li: "Okay!"... Char: Miss Sazabi is so cute, do you want to exchange contact information? Sazabi Machine Soul: Get lost! You scumbag!

I, Lin Yuan, will marry the most beautiful woman and pilot the best mobile suit.

After more than twenty years of rigorous training in ancient martial arts, he has been reborn! The good news is that he has been reborn into the world of his beloved SEED Gundam, but the problem is that his martial prowess is of little use in this world.