In the year 1462 of the Sea Calendar, 13-year-old Yudian enrolled in the same school as Garp and Sengoku, only to be utterly defeated in the Marine Headquarters training camp. In this world of talent and Devil Fruits, Yudian could only rely on hard work and the system. 'Ding! Host needs to run 100,000 laps around Marine Headquarters to reach the maximum level of Six Styles - Shave!' 'Ding! Host needs to poke stones 1 million times with his fingers to reach the maximum level of Six Styles - Finger Pistol!'... 'Ding! Host needs to smash 10,000 mountains with Armament Haki fists to reach the maximum level of Armament Haki!' 'Ding! Host...' Listening to the system's repeated prompts and those ridiculous training tasks, Yudian felt immense pressure! However, after defeating Whitebeard with a single punch, the force of his punch blowing away Shiki, and his power intimidating Roger, he realized that his previous hellish training was indeed worthwhile.

A navy from the Age of Exploration, upholding the ideals of justice. In the Douluo Continent, starting from the bottom. A clash between the Navy's Six Powers, the Three Colors of Haki, and Martial Souls. Wang Li: My talent is average, but that doesn't stop me from being invincible!

Ye Chen transmigrated to the Douluo Continent and awakened the Great Sage Equaling Heaven Martial Soul. Without relying on the system, relying only on himself, Ye Chen is determined to use the Golden Cudgel in his hand to pierce through the heavens and earth of the Douluo Continent.

[Traditional online games + action + integration with reality]

In July of 2022, a groundbreaking virtual reality game, "Watchmen," was born.

Unemployed Lin Feng stumbles into working at a game studio, never imagining that this casual decision would become a turning point in his life.

With a long spear and a pot of sake, explore secret realms and fight bosses.

Behind our continuous growth and strengthening lies the responsibility of protecting this world.

"Xue Li, why are we playing Jenga?" "Rebecca, Lucy, V... because I think you need to fight side-by-side and communicate more deeply."... Xue Li transmigrates to a cyberpunk world and gets caught up in a cyber psychopath massacre. Fortunately, he awakens a cyber psychopath treatment system. As long as he helps female cyber psychopaths restore their sanity according to the instructions, he can replicate their prosthetic abilities to enhance himself and control them... This means he can enjoy the benefits of the cyberpunk world without being entangled by its side effects. Faced with a suffocating company, streets filled with violence and bloodshed, and digital ghosts roaming beyond the black walls, Xue Li decides to use his body to become the light illuminating the neon lights, giving them and the world a small shock. Rebecca: "Bitter! I won't be defeated by cyber psychopaths!" Lucy: "I... I don't need you to treat me!" Sasha: "Treat... treat me and I'll be cured! I'm not afraid!" Xue Li: "Come on, cure your cyber psychopaths, and let's burn this messed-up world to ashes!"

Lord of Mysteries + Detective Conan + certain characters from other anime

The male protagonist has no romantic partner.

Lin Xiuming is just an identity; in reality, he is Morofushi Hiromitsu, who survived death but lost his memory, and went from being Shinichi Kudo's neighbor to becoming Conan's right-hand man.

Order of appearance of important Conan characters:

Date Wataru (Weapon Master), Chapter 4; Kudo Shinichi (Reader, Deduction Student), Chapter 5; Mouri Ran (Lucky Guy) and Suzuki Sonoko (Praiser), Chapter 11; Professor Agasa (Craftsman), Chapter 20; Amuro Tooru (Nightmare), Chapter 28;

I, Uchiha Hofu, accidentally traveled to the world of Naruto.

I obtained the Multiverse Sign-in System! And I got the SSR-level treasure, the [Herrscher of Reason Core]!

I single-handedly repelled the Iwagakure army!

I led my people to evacuate Konoha and establish our own clan!

I slaughtered the darkness of Konoha—Shimura Danzo!

While chatting and laughing with Ban Ye, we decided the fate of a great nation!

I witnessed the collapse descending upon the ninja world!

I defeated the strongest enemy I have ever encountered—the Herrscher of Water!

I am the current head of the Uchiha clan, the former daimyo of the Land of Water, the five-core herrscher of the Hokage, and the demon god of the end—Uchiha Hatake!

The Otsutsuki arrives in high spirits, only to be brutally beaten by an ordinary Uchiha Jonin. That would be quite a sight!

Thanks for the invitation. I am currently in the ninja world, just resurrected. I am now the divine son of the Evil God Cult, the chief spokesperson of the Evil God, and the number one lackey appointed by the Evil God.

Based on the principles of dedicating his life to fighting for the Evil God, the Evil God being supreme and omnipotent, the Divine Child Simu devised the [Sacrifice the Ninja World] plan.

Orochimaru: "Only by submitting to the evil god can I obtain eternal life."

Nagato: "True peace is achieved by sacrificing the entire ninja world. Without people, there will be no conflict."

Obito: "I want to create a world where only Jashin exists."

Deidara: "The Jashin-sama is the true art!"

Decades later, the evil god was resurrected and, looking at the Allied Shinobi Forces that came to punish him, slowly typed a question mark.

"I've been sealed away for hundreds of years, and now I'm the public enemy of the ninja world?"

[Slow-paced training + no female protagonist + Hunter x Hunter world adventure]

Zhao Tianming transmigrates into the world of Hunter x Hunter for the second time. Having already transmigrated into the world of One Piece, he awakens his Haki once again. In order to learn Nen, he takes the Hunter Exam, but unexpectedly gets entangled with Hisoka.

That said, Hisoka is actually a pretty good guy, except for his habit of being naked in front of me all the time...

P.S.: I really like Hunter x Hunter, so I got carried away and started writing this. But I only realized how troublesome Hunter x Hunter fanfiction is when I was halfway through. All the messy Nen abilities and world-building made my head spin.

She transmigrated into the Naruto world, only to become Sakura Haruno. After drifting aimlessly for five or six years, she finally realized she had no system, no cheat codes, and no special abilities—a complete "three-nothing" transmigrator. Was she destined to become a mere foil to Naruto and Sasuke, a laughingstock among the new Three Ninja? No! Who says a commoner can't rise to power? In the original story, she became a Kage-level ninja; as a transmigrator, she would only be stronger! Thus, determined, Sakura Haruno began her relentless pursuit. Ultimately, relying on her extraordinary genjutsu talent, she stood atop the ninja world.