The world has inexplicably changed; Mai Sakurajima, Misaki Shokuhou, and Misaka Mikoto suddenly appear. Why can he still connect to another world? The Holy Grail War; the Apocalypse Virus; the labyrinth city of Orario; the Teigu users; "The world is so chaotic, since I've become a demon, I should be cunning, cruel, and tyrannical, that's how it should be..." But these girls before him are not only not afraid of him, but their faces light up with joy upon seeing him; the demon falls into deep thought...

Minos, who transmigrated to the One Piece world, obtained the Killing System, acquired the Black Dragon King's immense strength and the ability to create the Shadow King clone, and wreaked havoc in the One Piece world, eventually becoming a god.

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!

Office worker Chen Yao is unexpectedly transported to a world overrun by monsters. He witnesses his fellow travelers die tragically and struggles to survive in an endless cycle of terror.

Saeko Busujima: Can a killing machine like me have the right to be happy?

Kaneki the Ghoul: You want to eat me again, huh? Well then, it's okay if I eat you, right?

Alice: Is that the G-virus of the Son of God? No, it's a far more powerful organism!

Kaido, one of the Four Emperors: No, that man is the one who deserves to be called the strongest creature!

...

Chen Yao: I just want to live and find my own answer.

Starting with the T virus, then the G virus, the C virus, RC cells... and even the Blacklight virus!!

Fight through endless cycles of reincarnation, witness the myriad aspects of life.

Even when you are in the depths of hell countless times, the light is still there.

Past, present, future, and destiny. These form the foundation of the world and represent the power of the present. The past is eternal, representing unchanging power. The present is the era, representing the strongest power. The future is potential, representing infinitely powerful yet infinitely weak power. Chosen by the past, one becomes the master of the unchanging. Chosen by the present, one becomes the king of the era. Chosen by the future, one becomes the emperor of the end and the emperor of hope. Chosen by destiny, one becomes the emperor of fate! The chosen youth ultimately embarks on the path planned by destiny. Not wanting to be bound by fate, he continues forward. If humanity cannot achieve this, then he will become a stronger being, until he becomes an ultimate existence that even gods cannot look directly at. The world is finite, but dimensions are infinite. Continuous battles lead to becoming the ultimate being. Becoming the master of destiny! The female lead is Yae Sakura (?ω*?). Worldline: Akame ga Kill! → Fourth Holy Grail War → Godslayer → Dragon Clan → Problem Child [First two volumes are for beginners, poor quality]

[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]"

[Main plot of *Puella Magi Madoka Magica*: farming, romance, daily life, and various artistic creations by girls.] [The plot doesn't follow the original story; if you haven't read it, you can treat it as an original magical girl story.] The transmigrator, Makoto Tsukimi, possesses the ability to control his senses and create illusions at will. Day 1 after meeting Homura Akemi: She threatened me with a gun to my head, asking if I was Kyubey's henchman. Day 1 after meeting Homura Akemi: She shared my senses and hugged her best friend in a dream. Day 1 after meeting Homura Akemi: She participated in an illusion party with her magical girl companions. ...Magical girls are creatures who transform into monsters when they despair, destined for tragedy. Homura Akemi: "Becoming a magical girl is like dying; it's completely irreversible. The only ending for all magical girls is despair." Makoto Tsukimi: "Oh, what a coincidence! If reality is so hopeless, how about sinking into fantasy? The world in modulated mode is definitely full of joy. A little bit of this can revitalize you when you're in despair. How about I give you a Madoka Kaname set meal first?" Homura Akemi: "..."

I've been transported to the beginner village, Sirius Island, and the beginner's gift pack contains the Fire Dragon Slayer Magic.

In order to avoid becoming a dragon soul under the Black Dragon King's claws, Luo Xia chose to stay put and cultivate, waiting for the Fairy Tail main characters to arrive.

Ten years later, the dragon arrived, not a black dragon but a blue dragon... Kaido the Blue Dragon.

Luo Xia: I've been practicing Dragon Slayer Magic for ten years, preparing to join Fairy Tail as an S-Class Mage, and you're telling me this is One Piece?!

Kaido: What kind of monster did I recruit? What kind of subordinate dreams of slaying dragons all day long?!

Yan Zaijin: Actually, Luo Xia is pretty good, provided that the bastard didn't use me to farm money with the World Government, 100 million each time, and didn't even share it with me.

Art Disaster Queen: That son of a bitch, Loscha, is really wicked. He's treating me like a lowly samurai.

Brother Disaster Jack: Luo Xia's daily routine consists of eating, sleeping, and beating up his younger brother. You ask who his younger brother is? Don't ask, I just don't know.

Heavenly Dragon, Thunder Dragon, Iron Dragon, Shadow Dragon, Light Dragon, Sword Saint Dragon, Azure Dragon... All dragon-slaying magics are now under my control, making me the strongest dragon.

Also known as "Preparing for the Fairy Tail S-Class Qualifying Exam, You Say It's One Piece?", "The Beasts Pirates' Rebellious Dragon Slayer Mage", and "Is One Piece + Fairy Tail a Good Idea?"

...

I made a wish to my great-great-great-grandfather: to live out my days in Naruto. My great-great-great-grandfather was incredibly kind; he gave me an invincible scratch-off lottery shop. My name is Wu Di, and I am invincible.

My World is a Troublesome Village Worldview.

Amidst the chaotic battles between the creator god, awakened creatures, villagers, players, and various other forces, a new king is born. Will he be a fleeting figure or a choice of destiny?

No romantic pairing (ship whatever you like).