Travel through One Piece, with a system that can extract ninjas from the Naruto world and bring them to the One Piece world, watch Hashirama Senju and Uchiha Madara, Susanoo Buddha, fight against Big Mom and Kaido, watch Naruto, Sasuke and Luffy join forces to beat Akainu in the top war and rescue Ace. The protagonist Chen Xiujie constantly summons ninjas, obtains their abilities, merges them into one, leads a group of ninjas, faces Im in Marijoa, points at his nose and asks him, do you want to dance too.

At the same time, he traveled through the 99 world series and was nicknamed "Brother Cheng". The plug-in was himself.

Hokage Yang Cheng: What! Red Bean is my teacher? Then Aunt Snake is...

Devimon Yangcheng: I just want to be a kind Devimon, but the chosen children are stupid!

Shijiao Yang Cheng: Battle of wits? I've reached my combat ceiling, so why not just speedrun?

Pirate Yang Cheng: Nami is my adopted sister?

Yiquan Yangcheng: What? I'm a tentacle monster, so it's okay...

Bleach, One Piece, Naruto, Digimon, Pokémon, Re:Zero - Jobless Reincarnation, Shakugan Shana, there are so many, I'll just write whatever comes to mind...

Xie Yu, ranked 33rd on the Hunter website, discovered a large number of ancient tomes containing dragon inscriptions in a mysterious tomb. These tomes record the experiences of an immortal: [Dragon blood as a medicinal ingredient can activate human power; this is the path to becoming a god.] [I met a young man named Zhang Jue, who, unsupervised, mastered the Words of Wind, Spirit, and Fire.] [That little boy named Li came to celebrate my thousandth birthday. I was delighted, but why did he send a female dragon? What did he take me for? ...But it's okay.] [Three hundred years in a dream. The so-called emerging dragon-slaying families of the West still view bloodlines with such a narrow mindset.] [Meineke Cassel is an interesting young man. With a little guidance, he's glimpsed a glimpse into the path to becoming a god. A quick calculation... Huh? Why won't he survive this summer?] ...and then...

In this world where elves are born, our protagonist Wu Yichen, relying on his own efforts and the help of a little bit of plug-in, successfully won the official status of the Elf Alliance Gym Master. As a gym master, can he protect the peace of this area? Will his life usher in any changes?

Please stay tuned

(Family, I'm a new author and I'm looking for support. Please give me a review! A few stars doesn't matter!)

[Unlimited Couples] + [Crossover Anime Power Level] + [Leveling Up Flow] + [Multiple Female Leads] + [Strong Female Lead First, Then Male Lead's Conquest]

The rating has just been released; it will likely increase later.

Qi Xia awakens the [All-Heavens Wife Gacha System], a gacha pool connecting female characters from all realms (anime, games, novels, movies, history, mythology, and even the real world). One gacha pull per day guarantees you a wife.

...

Many years later, Qi Xia stood at the pinnacle of the universe, looking down upon all living beings.

It's said that behind every successful man is a successful woman, and Qi Xia has billions of them.

In this extravagant era where rebirth and time travel have become a trend, Li Siyuan woke up and found that he was not spared and had joined the army of time travelers.

Others who traveled through time became young masters, princes, and holy sons.

And he...traveled through time and became a eunuch.

Don't be afraid, the system is here! With the system in hand, the world is mine! Keep a low profile, sign in to the library for sixty years, and you'll accidentally become the Emperor Wu of the Great Zhou!

(Slow burn, chuunibyou protagonist, multiple female leads)

Thanks for the invitation. I was reborn in Tokyo and my name is Natsuki Subaru.

I was transported to another world and awakened the Sharingan at the start, but I encountered a strange character and found that I couldn't defeat him even with all my strength, so I chose to call on the world's strongest.

P.S.: The protagonist hasn't watched Naruto or Re:Zero, so please don't read if you're not into that. Also, the Sharingan evolves gradually, not all at once.

Linnaeus, a transmigrator. He survived the Third War of Abundance, endured an arrow from the "Hunter," and served as a sea patrolman for twenty-eight years. Even his system had become incredibly strange. Linnaeus felt nothing could shock him anymore. What hadn't he seen? Until—he saw the white-haired paramecia that spawned in his room. Linnaeus fell silent. No. He had truly never seen anything like this before! Oh no! Had his room gone mad?!

This is a world of swords and magic. Those blessed by the gods have the magic power to fight against evil. Ordinary people without magic power rely on tempering their bodies to fight against evil. ... At the worst moment in Li Wei's life, he traveled through time!