I was thrown into countless hentai worlds, forced to walk the path of scum to survive. I seduced married women with the fragility of a young boy, coerced girls with my blond hair, or engaged in forbidden school romances as a teacher… Now I have a new identity: the evil spirit of Babel, the doctor of Rhodes Island… the harem king of Terra. I will use the abilities of the underworld to change this land filled with tragedy. I was once a quality inspector at Type-Moon Heavy Industries, and I conquered the world in the name of Lance; those powers came with me. “Believe me, my becoming a harem king is all the world’s fault!” “I will save this damned world! To undo those regrets!” “Come, witness me as a player, as the Fourth Calamity!” [Erotic and exciting, five chapters a day, quality guaranteed, plenty to satisfy]

Transmigrating into the world of Naruto, and reborn in the Hidden Cloud Village? No bloodline limit, no powerful family background, even his chakra reserves are only average to below average—but who says only geniuses can reach the pinnacle of the ninja world? While others vie for Konoha and the Hokage title, I, Chiba Shun, will settle in the Hidden Cloud Village! Reform the ninja academy, cultivate all kinds of disciples. The Hidden Cloud Village lacks ninjutsu other than lightning release? Ask Danzo for some! The Hidden Cloud Village lacks funds? Extort Konoha! The Hidden Cloud Village doesn't have many bloodline limit ninjas? The neighboring Hidden Mist Village has some! I may not have a renowned master, but I can take on disciples and learn from those with various talents.

Luo Tian transmigrated to the Douluo Continent during the era of the Legend of the Dragon King. With only average talent, he originally planned to live a peaceful new life. However, an unexpected operation by the Celestial Venerable sent him on a mysterious journey through the universe, and Luo Tian became God's backup plan for resurrection in another world.

(American police + daily life + gunfight + promotion + mature woman)

Arthur Morgan is reborn in Los Angeles and discovers he has a Red Dead Redemption system.

He was once the King of Fighters in the West, the King of Widows in the West, the King of Hunters in the West, the King of Hello in the West...

Now it possesses the Death Eye, Widow's Affinity, Tracking...

Having been given a second chance at life, I will not be a bandit but a policeman. My goal is redemption and to save as many widows as I can.

[Type-Moon] [Simulation] [Scores will increase after the game just opened]

Crossing through Fuyuki, looking at the blood-red pattern on the back of his hand, Novell decides to speedrun the Holy Grail War alone in order to avoid becoming a victim of everyday gas explosions.

—————

"Ahem, Tohsaka-san, what do you mean I'm some old monster who's lived for who knows how many years? I just recently learned a few little tricks so I can survive in the Holy Grail War."

Novell looked at Rin Tohsaka across from him, whose eyes were filled with deep suspicion.

"Huh? You're asking me why I'm so skilled at rune magic?"

"Of course, it's all about practice, cough, practice makes perfect."

[Invincible protagonist][HP fanfiction][Making money][Refreshing read][Single female lead][Slytherin]

Travel back in time to Harry Potter, and acquire magical skills by spending gold!

From then on, the art style of the magical world completely went astray.

Only I know that I just want to make more money, and incidentally... become a god.

Years later, Voldemort, wielding the Elder Wand, roared at me, "How dare you oppose the Dark Lord!"

I sighed, and behind me slowly appeared a skill tree, illuminated in gold and stretching across the sky.

“Sorry, Mr. Tang,” I snapped my fingers, “but you’re preventing me from making money.”

[Dark-Dark Fruit, Demon Void, Mythical Zoan-type Shikigami, Great Swordsman, God Valley Era!]

Char Aznable travels to the world of One Piece and becomes the strongest general in the Kingdom of Vokawa, with a subordinate named Kaido.

When he and Kaido were being escorted to Mary Geoise, the Dark-Dark Fruit came to them, and a shrine was born within his body.

From then on, all Zoan-type Devil Fruits could be subdued and turned into shikigami for battle.

The game even gives you the strongest shikigami, Demon Void, right at the start!

Furthermore, there are special exclusive rewards for taming mythical beasts!

Subduing the vampire form rewards [Grafting], subduing the Yamata no Orochi form rewards [Chimera], subduing the horse bone rewards [Nest of Bones], subduing Nika rewards [Bungee Gum]... As the number of mythical beast shikigami increases and the chimera methods become more varied, Char discovers that he is invincible!

Kaido: "Mr. Machoro, teach me!"

Mo Xu Luo: "Nika Nika~~~~~"

The God Valley battle begins, and Char claps his hands together: "Chimera Dark Garden! Countless Shikigami unleash their power!"

Rocks: "This era is called the Black Emperor!"

When Char led his shikigami to attack Mary Geoise, ten thousand phantom beast shikigami slammed into his face, and Im panicked completely!

Transmigrating to the ninja world, I awaken a strategy and development system, but as my strength grows, why does it feel increasingly chilly behind my back?

"You're saying I'm special, right?"

"Senior, you gave me hope to live. I will never let you leave again."

"Chenye-kun, let's leave Konoha and go back to the life we ​​had back then, okay?"

Chen Ye: Speak properly, put the knife down first...

...

[Harem] [Battleground] [Daily Life] [Development] [Level Up]

——

[Lighthearted, Semi-Invincible, Multiple Female Leads] For the sake of sales targets, the dump truck had to smash Link into countless parts and send them to various worlds. Having transmigrated to countless worlds, Link has no system, no powerful backer, and can only rely on the shared strength of his countless selves. Naruto World: Kaguya Otsutsuki pulls Link to her side, "Come, Black Zetsu, this is your stepfather." Hogwarts World: Wizards surround Link as the Third Dark Lord. Looking at the Elder Wand shoved into his hand, Link laments, "I never wanted to be Minister of Magic! You've ruined me!" One Piece World: In an interview with the news bird, Link humbly states, "I don't actually have Emperor-level combat power; the three I defeated were just civilian generals." Marvel World: Link: "How can I borrow power from dimensions...?"

Good news, I was killed by a train at home.

Even better news: he's become the navigator of the train.

Even better news is that you can travel to the world of anime by train.

What pioneering and interesting things did you do after becoming a navigator?

She was paired with Kirito.

Adopting Lolis from All Over the World

Discussing the relationship between monarch and subjects with a famous queen

The birth of the king was celebrated with a cannon salute; God was lured onto a train; and Shiori almost fell in love with him.

Do these count?

Worlds experienced: Sword Art Online, Black Bullet, Akame ga Kill!, Date A Live, High School DxD, Guilty Crown, Academy Battle, Accel World...

(P.S.: The world-building is mostly from older anime series, with fewer newer ones.)