When Shiraishi wakes up, he finds himself transmigrated into the body of an eight-year-old Uchiha orphan in the Naruto world! He's rescued by "Uchiha Madara" (Obito) and thrown into Amegakure, the headquarters of the Akatsuki! In this desperate situation, he activates the [Super Learning System]—a learning efficiency a billion times greater than others, plus a virtual learning space! Facing a basic scroll casually tossed to him by Sasori, the world's greatest puppeteer, Shiraishi masters it completely in an hour, effortlessly creating automatically retaliatory "Transformers" puppets that leave Orochimaru and Sasori, who came to investigate, utterly defeated! When Sasori scoffs, "Nobody knows puppets better than me," Shiraishi immediately begins crafting a flying version of "Megatron" using high-grade materials! His modern industrial thinking delivers a devastating blow to the ninja world's craftsmanship, leaving Sasori speechless and inwardly screaming, "Compared to him, I'm utter trash!" This time, Shiraishi will use knowledge to change his destiny, initiating a technological revolution for puppeteers within the Akatsuki!

Ling Shu traveled through time and space, bringing the 'Genshin System' with him to the labyrinthine city of Orario. "Can I summon weapons and characters I draw in real life?" That's great. But... "Why do I have to choose a villain family to join at the start?" That's a real problem. PS: This is a fanfiction.

Save the world? Ha! What I want is friends! I want real friends! Why are you looking at me with such strange eyes! Don't come over here! I clearly treat you as a friend! But you want to push me down! This is a story about becoming Inaba Tsukuyō and being commissioned by Alaya to save the world.

Carloso traveled to become the creator god of the DNF world, Carloso, but his strength is not one in a million, and he traveled to the world of Marvel,

At the same time, he was invited by the 'Dimensional Chat Group', and after some hesitation, he finally chose to join.

Emiya Shiro: "Is there a newcomer again?"

Kanroji Mitsuri: "Hey, welcome to the newcomer, I hope it's a handsome guy!"

Kobayashi: "Welcome newcomers to the group, how about a photo?"

Carlos: "Thank you for the invitation! I'm in Marvel, I'm hiding for now!"

Yan Qing travels to a world of global reincarnation and, taking advantage of the fact that only he knows the plot, forms his own reincarnation team.

While other reincarnators were still facing perilous situations in various dungeon worlds such as Naruto, Marvel, One Piece, Dungeon Fighter Online, Chinese Paladin, and Xuan-Yuan Sword, his team had already begun to do whatever they wanted inside the Reincarnation Tower.

He thought his path would be smooth sailing from then on, and he would eventually conquer the Tower of Reincarnation, but...

"Warning: A reincarnator in Plane 000 has broken through the shackles of reincarnation. The interdimensional war is about to begin. All reincarnators, please prepare for battle..."

Cheng Feng transmigrated into the world of Fairy Tail. In this world where everyone's combat power is off the charts, Cheng Feng is a little panicked. Fortunately, he possesses the ability to receive magic and also carries a gacha system. With enough money, he can draw cards, and the cards he draws can be used using the receiving magic. This is getting interesting. Paying to get stronger—as long as the money's right, even the Black Dragon will be utterly defeated!

(Not a crossover anime/manga universe, but set in the Akatsuki/Akame ga Kill! universe) "Ichijo, I bestow upon you the Imperial Arm Murasame to commemorate your achievements." "No, too much killing intent, it will harm my health." "What about the Demon Possession?" "No, Lancer's luck is E, how many masters has this thing killed?" "Gaia Foundation?" "I don't want to be a cross-dresser!" "Then what do you want? Tell me, and I will grant it to you." "I want the Demon God Manifestation!" "But, this Imperial Arm is on Esdeath, if you want it, wouldn't you be taking Esdeath home with you?" "Your Majesty is wise, I thank Your Majesty for the marriage!"

[Adventures in the Roger Era] + [Gunslinger] + [Pure Devil Fruit Development] + [No System] + [Unchanged Power Levels]

Darrow travels to the world of One Piece and becomes the younger brother of Roger's wife Rouge. Fortunately, Roger has not yet conquered the Grand Line, so Darrow still has time to change his sister's tragic future.

With the power of the Compression Fruit and his innate Observation Haki, Dead Eye, Darrow grew step by step and made a name for himself on the high seas, writing his own legend in an era where heroes like Roger, Rocks, and Whitebeard rose to prominence.

The story begins with the crew's adventures (partially original storyline + extensive references to the old era in the manga), and after Roger's death, they become one of the Four Emperors and vie for supremacy.

[The strongest gunslinger] + [The most imaginative fruit development]

[2019 Newcomer King] The otaku beauty Hoshino Chiyuki, carrying her FGO Heroic Spirit deck, transmigrates to the world of Yu-Gi-Oh!. "Blue-Eyes White Dragon is invincible!" "Activate the effect of Grand Hero!" "Stella!" "My most loyal servant, the Dark Magician!" "Activate the effect of Grand Hero!" "Stella!!" "I..." "Activate the effect of Grand Hero!" "Stella!!!" Amidst ruins and endless corpses (referring to Grand Hero), Chiyuki wipes her forehead and smiles brightly: "[Slacking off, Yui]"

Transmigrating into the body of a pirate, Wang Chen becomes an apprentice on Whitebeard's ship. The New World is teeming with powerful figures, but he's fearless; he possesses a "jar system." He extracts Conqueror's Haki from Whitebeard. He extracts the Rumble-Rumble Fruit from Aokiji. He extracts the legendary sword, the Second Generation Kitetsu, from Marco. ...Aokiji: It's not a matter of strength; he's a very...special apprentice. Marco: An apprentice? Of course he's Whitebeard's apprentice, except he can easily defeat an Admiral! Shanks: An apprentice? An apprentice who can make me flee in terror, don't I, Shanks, have any dignity? Blackbeard: You...you stay away!! ...As an apprentice, he becomes the king of the New World, starting with slapping Shanks and chasing Blackbeard!