(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!"

Fatti, transmigrated to the world of DanMachi, starts with a fully-equipped arsenal of three magic spells and seven skills. Unfortunately, his potential is extremely limited, preventing him from seeing further. It's only after accidentally discovering a hidden treasure chest function that his life takes a dramatic turn. He opens invitations to recruit familiars from other worlds, acquiring various magic books and transforming himself from a mage into a noble sorcerer. With the goddess Demeter as his backer, he secretly accumulates strength, manages his familiar, and quietly develops his power. From then on, he cautiously and steadily begins his fantastical life in this other world.

[Rocks Pirates] [Multiple Devil Fruits] [Multiple Female Leads] [Battle for Supremacy]

Fang Huo stumbled upon a stroke of luck and traveled to the Ancient Moon Village in the One Piece world. His soul cracked during the time travel, undergoing a special mutation and fusing with the energy of this world to form nine soul worms of the same origin yet independent.

With the first Soul Worm fusing with a Devil Fruit power, a user of nine Devil Fruits was born...

Moon-Light Fruit, Gravity Fruit, Vampire Fruit, Moo-Moo Fruit, Rumble-Rumble Fruit, Azure Dragon Fruit...

With Fang Huo's help, the Rocks Pirates appeared in the world ahead of schedule, possessing an unprecedented ultimate lineup...

Have you ever seen the Rocks Pirates, which included Red Earl, Roger, Rayleigh, and Jabba?

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 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]

——

What are Joan of Arc's three good points? Kindness, ignorance, and easy to seduce. Whether it's Black Joan, White Joan, Young Joan, Blue Joan, Red Joan, or whatever Joan of Arc is, they're all mine! What? You say there's no Red Joan or Blue Joan? They just look the same, so it's fine.

(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.

[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.)

[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."